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181	Soil sciences	ABS-115
Compression Strength of Soft Clay Stabilization with Rice Husk Ash and Spent Catalyst RCC 15 Sandy D Sagala (1), Syahril S (1,a*), R. Desutama R.B.P (2), Indra Noer Hamdan (3) (1) Magister of Applied Infrastructure Engineering Study Program, Department of Civil Engineering, Polytechnic of Bandung State, Indonesia (2) Department of Civil Engineering, Faculty of Engineering, Polytechnic of Bandung State, Indonesia (3) Department of Civil Engineering, Faculty of Engineering, National Institute of Technology Bandung, Indonesia Abstract The purpose of soil stabilization in soft clay chemically is to improve the bearing capacity so it can bear the mass upper structure. This research used additive material Rice Husk Ash (RHA) and spent catalyst RCC 15 (RCC) as a stabilizator. The first step is to take the soft clay soil samples and examine the index properties. The engineering properties test is to get the Unconfined Compression Strength (UCS) value result. The mixture variant percentage used in this research referred to the prior research. For RHA is 6% percentage, and the percentage of RCC 15 is 5%, 7%, 9%, and 11%. In testing the index properties of atterberg limit, the plasticity index (PI) of soft soil, variations of 6% RHA + 5% RCC, 6% RHA + 7% RCC, 6% RHA + 9% RCC, 6% RHA + 11% RCC are 29.45%, 28.22%, 26.44%, 25.68% and 25.55%. It can be posited that an increase in the degree of mixture variation is associated with a reduction in the plasticity index (PI). In Unconfined Compression Strength (UCS) Test, the qu values of soft soil, of 6% RHA + 5% RCC, 6% RHA + 7% RCC, 6% RHA + 9% RCC, 6% RHA + 11% RCC are 0.412 kg/cm2, 0.671 kg/cm2, 0.826 kg/cm2, 1.235 kg/cm2 and 1.425 kg/cm2. The compressive strength value of the soil increases with increasing percentage of spent catalyst rcc 15. The maximum result of Atterberg Limit and Unconfined Compression Strength Test is 6% of RHA and 11% of RCC 15. Keywords: Soil Stabilization, Rice Husk Ash, Spent Catalyst RCC 15, Unconfiend Compression Strength Share Link | Plain Format | Corresponding Author (Sandy D Sagala)

182	Soil sciences	ABS-116
Plasticity Index of Clay Shale Stabilized with Bledug Kuwu Mud and Asphalt Emulsion Syahril (a*), Khansa Nuansa Oktofani (a), Indra Noer Hamdan (b) a) Master of Applied Infrastructure Engineering Study Program, Department of Civil Engineering, Politeknik Negeri Bandung, Indonesia b) Departement of Civil Engineering, Faculty of Civil Engineering, Institut Teknologi Nasional, Bandung, Indonesia Abstract Soil conditions are pivotal in construction as they can influence the success or failure of a project. Prior to construction, a soil investigation is typically conducted to obtain essential soil parameters required for design, including the plasticity index (PI). This study investigates the enhancement of soil parameters through stabilization using a mixture of Bledug Kuwu mud and emulsion asphalt. According to a 2020 analysis by the Mineral and Coal Technology Laboratory Public Service Agency (TEKMIRA), Bledug Kuwu mud exhibits properties similar to those of fly ash and volcanic ash, both of which are known for their high silica content and pozzolanic characteristics akin to cement, making them suitable for soil stabilization. Phosphoric acid functions as a binder in this mixture due to its propensity to react with cations in soil minerals. The research involved mixing soft soil with Bledug Kuwu mud at varying percentages (6%, 10%, 14%, and 18%), with a constant asphalt emulsion concentration of 8% across all mixtures. The objective was to determine the optimal stabilization mixture for soil. Results demonstrated that the combination of Bledug Kuwu mud and asphalt emulsion effectively reduced the plasticity index, with the maximum reduction reaching 25.63%. The activity index (A) was measured at 0.07, indicating an inactive soil (A < 0.75). Consequently, the findings suggest that Bledug Kuwu mud and asphalt emulsion admixture is an effective method for soil stabilization. Keywords: Soil Stabilization- Clay Shale- Asphalt Emulsion- Bledug Kuwu Mud Share Link | Plain Format | Corresponding Author (Khansa Nuansa Oktofani)

183	Soil sciences	ABS-124
The Effect of Adding Calcite and Silica Fume on Soft Clay Stabilization in Terms of Specific Gravity and Unconfined Compression Strength Dian Adiputra Purba (a), Syahril (a*), R. Desutama Rachmat Bugi Prayogo (b), Iin Karnisah (b), Indra Noer Hamdhan (c) a) Magister of Applied Infrastructure Engineering Study Program, Department of Civil Engineering, Politeknik Negeri Bandung, Indonesia b) Department of Civil Engineering, Faculty of Engineering, Politeknik Negeri Bandung, Indonesia c) Department of Civil Engineering, Faculty of Engineering, Institut Teknologi Nasional Bandung, Indonesia Abstract The soil functions to absorb the pressure resulting from loads placed on it, requiring optimal bearing capacity to prevent damage or settlement. Soil stabilization is carried out to improve soil properties. In this study, clay soil stabilization will be conducted using a mixture of two materials, calcite and silica fume, to observe their effect on the specific gravity and unconfined compressive strength of the soil. The purpose of this research is to determine the influence of soil stabilization with the addition of calcite and silica fume on the specific gravity and unconfined compressive strength of the soil. This study involves assessing the physical properties (index properties) of the soft clay and mixed soil and determining the compressive strength (qu) of the soft clay and mixed soil. The tests were conducted with variations of calcite at 5% and silica fume at 6%, 8%, 10%, and 12%. The laboratory test results showed that the specific gravity of the soft clay was 2.591 g/cm3, and the specific gravity of the soil with mixed variations of calcite 5% and SF 6%, calcite 5% and SF 8%, calcite 5% and SF 10%, and calcite 5% and SF 12% were 2.546 g/cm3, 2.538 g/cm3, 2.534 g/cm3, and 2.526 g/cm3, respectively. The soft claysoil had an unconfined compressive strength (qu) of 0.412 kg/cm2. The soil with 0 days of curing had an unconfined compressive strength (qu) of 0.594 kg/cm2, 0.942 kg/cm2, 1.181 kg/cm2, and 1.284 kg/cm2 for the mixtures of calcite 5% and SF 6%, calcite 5% and SF 8%, calcite 5% and SF 10%, and calcite 5% and SF 12%, respectively. For the soil with 3 days of curing, the unconfined compressive strength (qu) for the mixtures of calcite 5% and SF 6%, calcite 5% and SF 8%, calcite 5% and SF 10%, and calcite 5% and SF 12% were 1.036 kg/cm2, 1.121 kg/cm2, 1.233 kg/cm2, and 1.569 kg/cm2, respectively. Keywords: Clay soil stabilization- Unconfined Compression Strength- Specific gravity- Siliica fume- Calcite Share Link | Plain Format | Corresponding Author (DIAN ADIPUTRA PURBA)

184	Soil sciences	ABS-127
Reduced Plasticity Index Value Of Soft Clay Soil Stabilized Using A Mixture Of Calcite And Spent Catalyst Rcc 15 Rizky F.(a), Syahril S.(a*), Judiantono T.(b), Shaputra M R E (a) a. Politeknik Negeri Bandung, Program Studi Magister Terapan Rekayasa Infrastruktur, Jurusan Teknik Sipil b. Universitas Islam Bandung, Fakultas Teknik Sipil, Jurusan Teknik Sipil Abstract Good infrastructure is important for the welfare of society, but many are damaged in Indonesia due to poor subgrade soils, such as soft soils. Soft soil has a low bearing capacity and high compression so it needs to be improved to be used as a subgrade material, such as the soil taken from Cililin District, West Bandung Regency because this area has a large amount of soft soil. This research evaluates the stabilization of soft clay using a mixture of calcite and Spent Catalyst RCC 15. The samples taken were tested at the Soil Mechanics Laboratory, Bandung State Polytechnic. This research aims to reduce the amount of waste generated by PT Pertamina which can produce 20 tons of waste per day. The use of calcite can also reduce costs due to its low price because Calcite is a basic ingredient of cement. The results showed that the addition of calcite and RCC 15 improved the physical properties of the soil, especially moisture content, dry specific gravity, saturated specific gravity, and Atterberg limit. In conclusion, the addition of these admixtures significantly improved the soft clay soil characteristics, indicating the potential of using waste RCC 15 and calcite as stabilization materials. Sample Va3 with the highest addition of admixture showed significant improvement in soil properties. The soil moisture content decreased by 24.23% to 30.46%. Dry specific gravity increased by 7.93% and saturated specific gravity increased by 3.83%. The Atterberg limit showed a decrease in PI from 30.62% to 14.26%, changing the soil classification from inorganic clay (CH) to denser inorganic silt (ML). Keywords: Soft Clay Soil, Soil Stabilization, Calcite, SpentCatalyst RCC 15, Plasticity Index. Share Link | Plain Format | Corresponding Author (Fahrul Rizky)

185	Soil sciences	ABS-130
Reduction of Plasticity index and Unit Weight from Soft Clay Soil Through Stabilization with Expanded Polystyrene (EPS) and Residium Cracking Catalyst 15 (RCC 15) for Lightweight Embankment M Rio Eka Shaputra (a*), Syahril S (a), Indra Noer Hamdan (b), Fahrul Rizky (a) a) Magister of Applied Infrastructure Engineering Program, Departement of Civil Engineering, Bandung State of Polytechnic, Bandung Barat, Indonesia b) Department of Civil Engineering, Faculty of Engineering, National Institute of Technology Bandung, Indonesia Abstract In connection with the increasing growth of motorized vehicles, it must be followed by the development of supporting infrastructure. In the implementation stage of infrastructure construction, the self-load of the construction plays an important role when the construction is carried out on soil types with unfavorable conditions such as soft clay. Load reduction techniques can be carried out using lightweight embankments. Lightweight embankment is a type of embankment that uses soil replacement material so as to reduce the specific gravity of the soil. Soil replacement can be done by stabilization method using Expanded Polystyrene (EPS) as a lightweight material. EPS which is polymetric foam granules with plastic base material has a high shear value so that a binder is needed to bind each EPS particle and soil. The use of Spent Catalyst Residium Catalytic Cracking 15 (RCC 15) as a binder can provide binding force between EPS particles and soil. RCC 15 has the same silica content as cement so that RCC 15 can be an alternative in replacing cement at a lower price. The production of RCC 15 from PT Pertamina can reach 20 tons per day so that the use of RCC 15 has the potential as a method of reducing waste. The research was conducted using a mixture of 0.4% EPS and a mixture variation of 20%, 25% and 30% RCC 15. Testing was carried out using the index properties testing method. Changes in the PI value that occurred in the ER-3 sample against the initial soil resulted in a decrease of up to 11.46% which shows that the soil characteristics are getting better. Specific gravity testing shows that the use of EPS as a soil replacement material can reduce the specific gravity of the soil. Keywords: soil stabilization, plasticity index, lightweight embankment, expanded polystyrene, spent catalyst RCC 15 Share Link | Plain Format | Corresponding Author (muhammad rio eka shaputra)

186	Soil sciences	ABS-133
Plasticity Index Reduction of Clay Shale Soil through Stabilization with Bledug Kuwu Mud and Asphalt Emulsion Khansa Nuansa Oktofani (a), Syahril (a*), Indra Noer Hamdan (b) a) Master of Applied Infrastructure Engineering Study Program, Department of Civil Engineering, Politeknik Negeri Bandung, Indonesia b) Departement of Civil Engineering, Faculty of Civil Engineering, Institut Teknologi Nasional, Bandung, Indonesia Abstract Soil conditions play a crucial role in the structural integrity of buildings constructed on them. The inherent properties of clay shale can lead to structural damage or even the collapse of buildings. This study investigates the stabilization of clay shale soil using Bledug Kuwu mud and asphalt emulsion. Laboratory tests were conducted to evaluate the effectiveness of the stabilization process, including the plasticity index (PI). The soil type in this research is clay shale. Clay shale is a type of clay that readily swells when exposed to water and air. The inherent properties of clay shale can lead to structural damage or even the collapse of buildings. This research investigates the enhancement of soil parameters, especially in plasticity index, through stabilization using a mixture of Bledug Kuwu mud and asphalt emulsion. Bledug Kuwu is classified as waste due to its composition of sediment and mineral deposits from geothermal activity. The research involved clay shale soil with Bledug Kuwu mud at varying percentages (6%, 10%, 14%, and 18%), with a constant asphalt emulsion concentration of 8% across all mixtures. The objective was to determine the optimal stabilization mixture for soil. The results showed a decrease in the plasticity index and an increase in soil strength, indicating that an admixture of Bledug Kuwu mud and asphalt emulsion is an effective soil stabilization method. Keywords: Soil Stabilization, Plasticity Index, Clay Shale, Bledug Kuwu Mud, Asphalt Emulsion Share Link | Plain Format | Corresponding Author (Khansa Nuansa Oktofani)

187	Soil sciences	ABS-139
The Effect of Rice Husk Ash (RHA) and Spent Catalyst RCC 15 on the Plasticity Index Value of Expansive Clay Soil Esron Padiri1, b), Syahril2, a), Juang Akbardin3, c) and Elrich Gratiawan WD Gulo1, d) 1Applied Masters Program in Infrastructure Engineering, Department of Civil Engineering, Bandung State Polytechnic, Bandung, Indonesia 2Department of Civil Engineering, Bandung State Polytechnic, Bandung, Indonesia 3Department of Civil Engineering, Indonesian University of Education, Bandung, Indonesia Abstract Infrastructure is a major support for the economy of a country, but there are many road infrastructures that suffer from geotechnical problems, causing damage to the road. This condition can certainly hamper the mobility of the community and thus reduce the economic rate. Subgrade problems in road pavements result in potholes, damage, cracks and bumpy roads. In fact, the damage to the road has been repaired many times, but the damage continues. This is caused by poor subgrade soils such as expansive clay. Expansive clay is a soil that has a high swelling potential when there is a change in the soil moisture content system. Its swelling potential can cause damage to the pavement, so efforts must be made to improve the soil. Expansive clay soil samples used in this study were collected in Cililin District, West Bandung Regency, West Java. Based on the results of tests conducted on the initial soil and stabilized soil, the values of specific gravity, bulk density, and plasticity index were increased. Variation V3 with a mixture of 12% rice husk ash (RHA) and 13% spent catalyst RCC 15 showed a significant effect on soil properties. The water content decreased from 51,49% to 31,22%, the dry weight increased from 11,51 kN/m3 to 13,6 kN/m3, the saturated weight increased from 16,89 kN/m3 to 18,29 kN/m3, the specific gravity increased from 2,68 to 2,75, and the PI value decreased from 38,27% to 15,8%. The changes in soil properties changed the soil classification from inorganic clay (CH) to inorganic silt (ML). Keywords: Expansive Clay, Soil Stabilization, Rice Husk Ash, Spent Catalyst RCC 15, Plasticity Index Share Link | Plain Format | Corresponding Author (Esron Padiri Lumban Gaol)

188	Soil sciences	ABS-142
Correlation Analysis of Radon Gas Concentration Anomaly with Seismic Activity around Manado, Indonesia Thomas Oka Pratama(a), Agus Budhie Wijatna(a*), Sunarno(a), Faridah(a), Hermin Kartika Sari(b), Avisena Kemal El-Syifa(a), Rony Wijaya(c), Memory Motivanisman Waruwu(c) a)Department of Nuclear Engineering and Engineering Physics, Universitas Gadjah Mada, Jl. Grafika No.2, Senolowo, Sinduadi, Kec. Mlati, Kabupaten Sleman, Daerah Istimewa Yogyakarta 55281, Indonesia *budiwijatna[at]ugm.ac.id b)Chemical Engineering, Politeknik Negeri Bandung Jl. Gegerkalong Hilir, Ciwaruga, Kec. Parongpong, Kabupaten Bandung Barat, Jawa Barat 40012, Indonesia c) Sensor and Tele-control Laboratory, Department of Nuclear Engineering and Engineering Physics, Faculty of Engineering, Universitas Gadjah Mada, Jl. Grafika No.2, Senolowo, Sinduadi, Mlati, Sleman, Daerah Istimewa Yogyakarta 55281, Indonesia Abstract Indonesia is located at the confluence of three major tectonic plates: the Pacific, Eurasian, and Indo-Australian. Manado, located between the Eurasian Plate, Pacific Plate, and Philippine Plate, experiences high seismic activity due to the interaction of these plates. Anomalies in radon gas concentrations prior to earthquakes have been identified in many areas as potential indicators of seismic activity. These anomalies result from cracks in the Earth^s crust prior to an earthquake, which increase pressure and trigger diffusion of fluids, including radon gas. However, no studies have documented radon gas concentration anomalies before earthquakes around Manado, Indonesia. This study analyzes the correlation between radon gas concentration and regional earthquake occurrence. Radon gas concentration measurements were taken continuously using an Internet of Things (IoT)-based system near the active Manado fault, with data stored on a server for further analysis. Radon gas concentration data is then compared with earthquake events with a magnitude of more than 4.5. The study showed significant anomalies in radon gas concentrations 1-7 days before the earthquake with 96% precision, 90% sensitivity, and 93% F-1 Score.. These findings provide an initial basis for developing an earthquake early warning system around Manado, which is expected to be used as a mitigation measure to save from natural disasters. Keywords: Earthquake, radon, anomaly, seismic, early warning Share Link | Plain Format | Corresponding Author (Thomas Oka)

189	Soil sciences	ABS-175
Analysis Of Digital Service Implementation In An Efforts To Improve The Quality And Efficiency Of Village Government Services Adrian Irnanda Pratama, Jaroji and Cindy Cleodora Bengkalis State Polytechnic Abstract This research evaluates the implementation of the ^SMART Desa^ application in 86 villages within Bengkalis Regency, aimed at improving public service delivery at the village level through digitalization. The study employs a descriptive and evaluative methodology, utilizing quantitative data collected from 100 respondents, including both village officials and community members. The analysis focuses on key aspects of the application, such as its usability, service quality, efficiency, and the challenges encountered during its implementation. Results indicate that the ^SMART Desa^ application has generally been well-received, particularly in enhancing the efficiency of administrative processes and increasing community participation in village governance. However, the study also identifies several improvement, including transparency, accessibility, and technical difficulties. Future studies include exploring the impact of digital literacy on the application^s effectiveness, incorporating qualitative insights, and investigating the long-term sustainability of digital services in rural areas. Keywords: SMARTDesa- Publicservice, Bengkalis, Share Link | Plain Format | Corresponding Author (Adrian Irnanda Pratama)

190	Soil sciences	ABS-206
Laboratory Investigation of Liquefaction Behavior on Sloping Ground: Insights from Physical Models Yelvi(1), Adrin Tohari(2), Abdul Hakam (3), Jafril Tanjung (3), and Arifan Jaya Syahbana (2) (1)Postgraduate Student of Civil Engineering Department, Faculty of Engineering, Univesity of Andalas, Indonesia (2) Research Centre for Geological Disaster, ORKM, BRIN, Jalan Sangkuriang, Dago, Bandung, 40135, Indonesia (3) Engineering Faculty, University of Andalas, Indonesia Abstract Massive flow liquefaction disaster occurred during the 28 September 2018 in Palu City and Sigi regency. In order to understand the factors controlling of the initiation of such liquefaction, a series of laboratory liquefaction experiments was conducted using a one-axis shaking table. This study aims to investigate the effect of relative density and slope on liquefaction behavior. Soil layer density modeling was conducted based on the results of field investigations in Palu City and Sigi Regency, which identified layers of dense sand, loose sand, and medium sand. Two soil model samples, measuring 1500 mm in length and 400 mm in width, were placed in a rigidly constructed liquefaction tank. The geometry of the loose sand and medium sand layers was formed with slopes of 0%, 3%, and 5%, with varying water heights. Three pore-water pressure sensors were installed in the loose sand layer to observe the excess pore-water pressure (EPWP) development during the shaking. The results of the experiments showed that the thickness of the unsaturated medium layer affected the increase in EPWP values in the loose sand layer. The percentage increase and decrease in the thickness of the medium sand layer is proportional to the increase and decrease in the EPWP value. In Model #1, both the thickness of the medium sand layer and the EPWP value exhibit a 100% increase, followed by a decline once the thickness reaches 100%. Additionally, the thickness of the medium sand layer prevents the EPWP value from influencing the slope of the loose sand layer, which has an upper slope limit of 5%, as observed in Model #2. The results of this study will be used for further research with sand deposit models and a more in-depth analysis of flow liquefaction. Keywords: Excess pore water pressure, Flow liquefaction, Shaking table Share Link | Plain Format | Corresponding Author (Yelvi Yelvi)

191	Soil sciences	ABS-219
The Influence of Buton Tailing and Expanded Polystyrene (EPS) on The Shear Strength of Sandy Soil Dewi Amalia1, a), Hendry1, b) and Elrich Gratiawan WD Gulo2, c) 1Department of Civil Engineering, Bandung State Polytechnic, Bandung, Indonesia 2Applied Masters Program in Infrastructure Engineering, Department of Civil Engineering, Bandung State Polytechnic, Bandung, Indonesia Abstract Buton tailings, which are a by-product of buton asphalt, have not been optimally utilised. In fact, research shows that buton tailings have the potential as an additive to improve soil characteristics, especially sandy soil. This study aims to analyse the effect of the addition of buton tailings and Expanded Polystyrene (EPS) on the shear strength of sandy soil. The sandy soil used came from Padalarang, Indonesia. Tests were conducted by adding buton tailings at 0%, 2.5%, 5%, 7.5%, 10%, and 12.5% of the soil weight, and EPS at 0.15%, 0.3%, and 0.45%. The results showed that the addition of buton tailings increased the cohesion and shear angle of sand soil. The most significant increase occurred with the addition of 5% buton tailings and 0.15% EPS which increased the inner shear angle by 44% from the initial condition. Based on these results, it can be concluded that the combination of buton tailings and EPS has the potential to increase the shear strength of sand soil. Keywords: Button Tailing, Expanded Polystyrene, Shear Strength, Sand Share Link | Plain Format | Corresponding Author (Dewi Amalia)

192	Soil sciences	ABS-227
Compressive Strength on Clay Shale Soil Stabilization with Asphalt Emulsion and ALWA Perlite Victor Firstkiel Feber Naess (1), Syahril S (1a), Nursyafril (2), Indra Noer Hamdhan (3) (1) Magister of Applied Infrastructure Engineering Study Program, Department of Civil Engineering, Politeknik Negeri Bandung, Indonesia (2) Department of Civil Engineering, Faculty of Engineering, Politeknik Negeri Bandung, Indonesia (3) Department of Civil Engineering, Faculty of Engineering, Institut Teknologi Nasional, Indonesia Abstract Subgrade conditions unsuitable for use as pavement subgrade, such as clay shale, result in low-strength subgrade soils that cause the pavement to deform and crack easily. When in a dry and undisturbed state, clay shale will undergo expansion and weathering, resulting in a notable decrease in strength. Therefore, it is crucial to enhance the intrinsic quality of clay shale soils to achieve optimal bearing capacity and ensure the capacity to support superimposed structures. This study aims to augment the compressive strength value of clay shale soils with the use of artificial light weight aggregate (ALWA) perlite and asphalt emulsion stabilization materials. ALWA perlite possesses pozzolanic properties that are beneficial for improving soil quality and enhancing bearing capacity. The asphalt emulsion component plays a role in increasing soil strength by facilitating stronger interparticle bonding. In this study, a uniform asphalt emulsion concentration of 8% was employed. Various concentrations of ALWA perlite were tested, including 4%, 8%, 12%, and 16%. The results demonstrated that an 8% mixture of asphalt emulsion and ALWA perlite was optimal for enhancing the compressive strength of clay shale soil. This resulted in a 106% increase from 0.39 to 0.81 in the soil^s compressive strength value. Keywords: Clay Shale, Soil Stabilization, Asphalt Emulsion, Artificial Light Weight Aggregate Share Link | Plain Format | Corresponding Author (victor firstkiel feber naess)

193	Sustainable development	ABS-256
WHO IS GOING GREEN? DETERMINANTS OF GREEN INVESTMENT INTENTION IN THE INDONESIA RETAIL GREEN SUKUK Ida Syafrida (a*), Bambang Waluyo (a), Indianik Aminah (a), Taufik Awaludin (b), Enny Savitri (b) a) Jurusan Akuntansi, Politeknik Negeri Jakarta, Jl. Prof. Dr. Siwabessy, Kampus UI Depok, Indonesia * ida.syafrida[at]akuntansi.pnj.ac.id b) Program Studi S1 Manajemen, Universitas Pamulang, Jl. Surya Kencana No. 1, Pamulang,Tangerang Selatan, Indonesia Abstract This research aims to identify the determination of the green interest intention of Indonesia^s young generation in Retail Green Sukuk and provide recommendations specifically for issuers and sukuk distribution agents to determine potential green sukuk investors in Indonesia. The independent variables used in this research are the Big Five Personality Theory, happiness, and religiosity. The dependent variable is green investment intention. The main research data is the result of questionnaire from 395 young generation respondents (the Y and Z generation categories) in the Jakarta, Bogor, Tangerang, Bekasi areas. Data were processed using descriptive analysis methods and Partial Least Square - Structural Equation Model (PLS-SEM). Descriptive analysis is to explain the demographics of respondents, while SEM-PLS is to analysis the determination of green investment intention factors for Retail Green Sukuk. The results of this research is the young generation with character consciousness, openess, and religious are more influenced to invest in Retail Green Sukuk than character. The majority of respondents have a preference for the green investment sector in sustainable natural resource management and waste management waste energy. Keywords: Big five personality theory- Happiness- Religiosity- Green investment intention- retail green sukuk Share Link | Plain Format | Corresponding Author (Ida Syafrida)

194	Sustainable development	ABS-257
Do Tourism Events Affect Lodging Occupancy Rates? A Case Study of the Tomohon International Flower Festival, North Sulawesi Province Selvy Kalele(a), Mauren M. Mandagi(b), Frans V. Rattu(c), Alma K. Pongtuluran(d), Margresye D. Rompas(e), Pearl L. Wenas(f), Benny Irwan Towoliu(g)* Politeknik Negeri Manado Abstract The tourism sector is one of the sectors that plays an important role in the Indonesian economy. There are many ways to increase the number of tourist visits, one of which is by organising tourism events that emphasise optimising the potential that exists in Indonesian regions. Tomohon is one of the cities in North Sulawesi Province known as the Flower City and is supported by a flower festival called the Tomohon International Flower Festival (TIFF). The purpose of this study is to examine the impact of the event on the occupancy rate of lodging in the city. This research is quantitative in nature by taking samples at 3 inns that represent standard inns in Tomohon city, with specific respondents who work at the inn with a total of 100 respondents. From the results of the analysis that simple linear regression shows a positive influence between the implementation of the TIFF event on the occupancy rate of accommodation in Tomohon City Keywords: tourism event- lodging occupancy rates- tomohon international flower festival, north sulawesi Share Link | Plain Format | Corresponding Author (Benny Irwan Towoliu)

195	Sustainable development	ABS-5
DISCLOSURE OF ENVIRONMENTAL PERFORMANCE, LINKS TO OWNERSHIP STRUCTURE, AND PRESENCE OF FEMALE DIRECTORS Etti Ernita- Endah Dwi Kusumastuti-Amanda Nazwa Maharani,Muhammad Daffa Nadiwinata Politeknik Negeri Bandung Abstract Environmental issues are urgent topics that are widely discussed at meetings around the world. The world^s environmental problems are related to climate change, pollution and the accelerated loss of biodiversity. Many countries are committed to addressing these issues, including Indonesia. Indonesia has set a long-term strategy to achieve low carbon and climate resilience by 2050 (Indonesia LTS-LCCR 2050). Achieving this strategy requires the involvement of various parties such as industry and society. Through appeals and policies that aim to involve, guide, control and monitor the achievement of goals. One of the government policies is the disclosure of sustainability performance, which is regulated in POJK 51/POJK.03/2017 and detailed in SEOJK 16/SEOJK.04/2021. One aspect of sustainability performance is environmental performance. The company is required to report the environmental costs incurred by the company, information on the use of environmentally friendly materials, the amount and intensity of energy used, the emissions released, the use of renewable energy, and the efforts made to achieve energy efficiency and emissions. The company is also required to disclose the impact of its operations on surrounding protected areas and the company^s efforts to conserve biodiversity. In addition, the company must report on the amount of waste and wastewater and the management mechanism. Companies must also disclose water usage and environmental complaints received and resolved. In meeting government requirements, corporate governance (institutional ownership, managerial ownership and composition of female directors) plays an important role in decision making. Disclosure and improvement of environmental performance cannot be separated from investment decisions and costs. Careless decisions can disrupt the company^s operations. However, these decisions must be made immediately because they are related to government regulations. Failure to comply with regulations puts the company at high risk. In addition to government sanctions (from warnings to closure), the company may be reported by environmental or community activists. There is a risk of high costs to resolve the problem, and the company^s reputation is tarnished in the short term. The purpose of this study is to examine the effect of institutional ownership, board ownership, and the presence of women on the board of directors on the disclosure of corporate environmental performance. This study uses secondary data with documentation data collection techniques. The sample of this study is mining companies listed on the Indonesia Stock Exchange in 2022-2023. This study measures environmental performance using 13 points based on SEOJK 04 of 2021. This study uses two control variables, namely company size and leverage. This study uses the STATA analysis tool. The analysis results show that the most appropriate model to use is the random effects model (REM). The results show that institutional ownership, board ownership, and female board composition have no significant effect on environmental performance disclosure. Only firm size has a significant positive effect on environmental performance disclosure. Keywords: Environmental Performance Disclosure, Institutional Ownership, Female Directors, Firm Size, Leverage Share Link | Plain Format | Corresponding Author (Etti Ernita Sembiring)

196	Sustainable development	ABS-261
Development Strategy for Hydroponic Vegetable Business in Padang H. Hasnah, Rina Sari, Azzahra Raudia Defiana Faculty of Agriculture, Universitas Andalas, Kampus UNAND Limau Manis Padang, West Sumatra, 25163 Abstract This study aims to (1) analyze the internal and external factors influencing hydroponic vegetable businesses and (2) formulate appropriate strategies for the development of hydroponic vegetable businesses. The research was conducted at Arief Hydroponic and WRP Hydroponic. The method used in this study is descriptive qualitative analysis with a case study approach. Data collection methods include direct observation, interviews, and literature review. The types of data sources used in this study are primary and secondary data. The results of this study show that the IFE (Internal Factor Evaluation) Matrix analysis of Arief Hydroponic has a total score of 2.881, indicating a strong internal position for the business. In contrast, WRP Hydroponic has a total IFE score of 2.480, which suggests a weaker internal position. For the EFE (External Factor Evaluation) Matrix, Arief Hydroponic scored 2.729, meaning the company can effectively capitalize on opportunities and avoid threats. Meanwhile, WRP Hydroponic has a total EFE score of 2.89, indicating a weaker response to external opportunities and a lower ability to avoid threats. Subsequently, a SWOT Matrix analysis was conducted to generate alternative strategies, which were then analyzed using the QSPM (Quantitative Strategic Planning Matrix). The QSPM analysis for Arief Hydroponic identified the best alternative strategy as improving the quality of production by adopting more modern technological advancements, with a TAS (Total Attractiveness Score) of 4.485. On the other hand, the QSPM analysis for WRP Hydroponic suggested that enhancing the skills of the workforce in both online and offline promotional activities to increase sales, with a TAS of 5.757, would be the most effective strategy.Therefore, the difference in business scale between Arief Hydroponic and WRP Hydroponic also leads to different strategic development outcomes. Keywords: business development, hydroponics vegetable, sustainable agriculture, SWOT analysis, QSPM Share Link | Plain Format | Corresponding Author (Hasnah Hasnah)

197	Sustainable development	ABS-264
Barriers to Visit Mangrove Ecotourism: Insights for Advancing Sustainable Green Tourism Syifaa Novianti, Fatya Alty Amalia, Iwan Awaludin, Brendan T. Chen, Norzuwana Binti Sumarjan, Dwi Suhartanto Politeknik Negeri Bandung, Indonesia National Chin-Yi University of Technology, Taiwan Universiti Teknologi MARA, Malaysia Abstract This study investigates the challenges Indonesian tourists face when considering visits to mangrove ecotourism sites. Mangrove ecotourism offers significant ecological and economic benefits, such as promoting biodiversity conservation and supporting local communities. However, it faces several hurdles, including high costs, accessibility limitations, and a lack of awareness. By reviewing existing literature and applying theoretical models like the Theory of Planned Behaviour, the study identifies major barriers and proposes potential solutions. Analysis of data from 473 participants in Bali, Surabaya, and Batam reveals the need for improved infrastructure, targeted marketing strategies, and educational programs to increase awareness and visitation rates. Overcoming these challenges can enhance the development of mangrove ecotourism, foster sustainable practices, and help conserve vital mangrove habitats. This research provides essential insights for policymakers and tourism planners working to address obstacles and advance mangrove ecotourism in Indonesia. Keywords: Ecotourism, Mangrove, Barrier to visit Share Link | Plain Format | Corresponding Author (Syifaa Novianti)

198	Sustainable development	ABS-9
The Influence of Green Human Resource Management on Corporate Environmental Performance Mediated by Organizational Behavior for The Environment (Study at an Oil & Gas Company) Ibnu Sastra Hadi Kusuma, Ivon Sandya Sari Putri Applied Business Administration Undergraduate Study Program, Bandung State Polytechnic, Jalan Gegerkalong Hilir, Bandung Barat 40559, West Java, Indonesia Abstract Increasing greenhouse gas emissions is an issue that must be faced by many parties because it triggers many negative impacts. Companies face increasing regulatory and social pressure to improve their environmental management and respond appropriately to external pressures, especially when companies operate in environmentally sensitive sectors. Good company human resource management is one of the keys to reducing greenhouse gas emissions. Green Human Resource Management as a human resource management practice influences Corporate Environmental Performance which is also influenced by the attitudes or actions of employees (Organizational Citizenship Behavior for the Environment) in the company. The aim of this research was to measure the effect of GHRM on CEP mediated by OCBE. This research involved 105 respondents who were employees of an oil and gas company in Indonesia. The method used in the research is an explanatory survey method with a quantitative approach. The results of the analysis show that there is a positive influence of the GHRM variable on CEP through OCBE as a mediator variable. Keywords: Green Human Resource Management, Organizational Citizenship Behavior for The Environment, Corporate Environmental Performance Share Link | Plain Format | Corresponding Author (Ibnu Sastra Hadi Kusuma)

199	Sustainable development	ABS-12
Leveraging Smart Technology for Sustainable Growth in Halal Tourism: A Quality Diamond Paradigm Approach Fatya Alty Amalia (a*), Dwi Suhartanto (b), Muhamad Nova (c), Norzuwana Sumarjan (d), Carol Yirong Lu (e), I Wayan Edi Arsawan (f) a, b) Department of Business Administration, Politeknik Negeri Bandung, Jl. Gegerkalong Hilir, Ciwaruga, Kec. Parongpong, Kabupaten Bandung Barat, Jawa Barat 40559, Indonesia c) Department of Tourism, Politeknik Negeri Bali, Kampus Bukit, Jimbaran, South Kuta, Badung Regency, Bali 80364, Indonesia d) Faculty of Hotel and Tourism Management, Universiti Teknologi MARA, Cawangan Selangor, Kampus Puncak Alam, 42300 Puncak Alam, Selangor, Malaysia e) Department of Business Management, National United University, &#32879-&#22823-1&#34399-, Miaoli City, Miaoli County, Taiwan 36003 f) Department of Business Administration, Politeknik Negeri Bali, Kampus Bukit, Jimbaran, South Kuta, Badung Regency, Bali 80364, Indonesia Abstract Halal tourism, anchored in Islamic principles, saw growth prior to the COVID-19 outbreak but encountered a significant downturn during the pandemic, highlighting the pressing need for long-term sustainability strategies. This study delves into the post-pandemic scenario of Indonesia^s outbound Muslim tourists, examining the impact of smart technology integration. Through a quantitative approach involving surveys of 545 Muslim travellers in key destinations, the research aimed to model sustainability based on customer experiences and satisfaction. The results reveal the pivotal role of smart technology in enhancing the quality diamond paradigm, a cornerstone in quality management. Strong correlations between smart technology and experience quality as well as satisfaction underscore the importance of technology adoption in improving customer experiences and, indirectly, fostering loyalty within the dynamic tourism sector. Managers are urged to prioritize technological integration to meet evolving customer expectations and ensure enduring success in the ever-evolving tourism landscape. Keywords: Smart technology- Sustainable- Halal Tourism- Quality Diamond Share Link | Plain Format | Corresponding Author (Fatya Alty Amalia)

200	Sustainable development	ABS-13
Sustainability in Action: Environmental Knowledge, Concern, and Attitudes in Electric Motorcycle Adoption in Taiwan and Indonesia Ivon Sandya Sari Putri1a, Carol Yirong Lu2b, Gundur Leo3c, Dwi Suhartanto 4d, Fatya Alty Amalia5e, Brendan T. Chen 6f, Mohammad Rizal Gaffar 7g, and Rivan Sutrisno 8h 1,3,4,5,7,8 Business Administrastion Department, Politeknik Negeri Bandung, Indonesia 6 National Chin-Yi University of Technology, Taiwan 2National United University Abstract This study examines the interplay between environmental knowledge, environmental concern, attitude, and actual behaviour in adopting electric motorcycles, with a comparative analysis between Taiwan and Indonesia. Utilising Partial Least Squares Structural Equation Modeling (PLS-SEM), data from respondents in both countries were analyzed to identify the key factors influencing sustainable mobility practices. Our findings reveal that environmental knowledge significantly impacts the actual behaviour of adopting electric motorcycles in Taiwan, whereas its influence in Indonesia is comparatively weaker. Conversely, environmental concern shows no significant direct relationship with actual behaviour in both countries. However, both environmental knowledge and concern significantly shape pro-environmental attitudes, which, in turn, strongly influence actual behaviour in both contexts. Notably, the relationship between environmental concern and attitude is stronger in Indonesia, highlighting cultural differences in environmental perceptions. These results underscore the importance of tailored strategies to promote electric motorcycles adoption, emphasising educational initiatives in Taiwan and leveraging environmental concerns in Indonesia. This study contributes to the understanding of sustainable transportation adoption in different cultural settings, providing insights for policymakers and practitioners aiming to foster environmentally responsible behaviours. Keywords: Actual Behaviour, Attitude, Electronic Motorcycle, Environmental Knowledge, Environmental Concern, Multi Group Analysis Share Link | Plain Format | Corresponding Author (Ivon Sandya Sari Putri)

201	Sustainable development	ABS-16
From Arisan to Financial Startup- a concept for developing microfinance management. Ali Masjono Muchtar (a*), Rahmanita Vidya Sari (b), Agus Supriyadi (c), Aminah (d) Politeknik Negeri Jakarta Abstract Originates from the routine activities of a community, namely social gathering (Arisan). From the Arisan activities, it was revealed that the Arisan had been running for 3 years, all community members held monthly regular meetings and all members had fulfilled their respective obligations and had felt the benefits of the Arisan. Based on these facts, an idea or concept emerged to convert the Arisan into a group capable of better financial management in the form of a financial startup. The main aim of this activity is to increase the role of community members so they can free themselves from financial dependence on parties outside the community. There are 2 methodologies used, firstly improving members^ skills and knowledge regarding financial governance (training), secondly regular assistance provided by Politeknik Negeri Jakarta^s financial management study program. Assistance is provided for 2 years or until the community can organize financial management without assistance. At the time this article was written, this concept had resulted in an agreement with the community and was underway. As a result of the training, 30 community members have agreed to improve Arisan financial management in a more professional manner and agreed to use startups as a source of finance to overcome dependence on parties outside the community. Keywords: Arisan- Microfinance- Startup- social gathering- financial startup. Share Link | Plain Format | Corresponding Author (ali masjono muchtar)

202	Sustainable development	ABS-17
Effectiveness of Operational and Maintenance Performance of Traditional Market Assets in Bandung Regency, Indonesia (Case Study at Lagadar Market, Margahayu Market, and Patrol Market) Putri Dewi Purnama1, Zulfa Winniar Saputri 2 1 Asset Management Study Program, Department of Administration Commerce, Bandung State Polytechnic, Bandung 40012 E-mail: putri.dewi[at]polban.ac.id 2 Asset Management Study Program, Department of Administration Commerce, Bandung State Polytechnic, Bandung 40012 E-mail: zulfa.winniar .mas20 [at]polban.ac.id Abstract Traditional Market play an important role in the buying and selling transaction process, thereby supporting a significant increase in regional income. Lagadar Market, Margahayu Maret, and Patrol Market are three traditional markets in Bandung Regency that have not been repaired and developed, causing a domino effect on the surrounding environment. Based on observations, the problems found were unmanaged parking areas, poor construction conditions of market buildings which could endanger asset users, as well as the unavailability of supporting facilities and facilities for people with disabilities, the elderly, and pregnant and breastfeeding mothers. The aim of this research is to analyze the effectiveness of operational and maintenance performance at the three traditional markets. Analysis of the effectiveness of operational and maintenance performance of traditional market assets in Bandung Regency uses theories adopted and modified from A Multi-Criteria and Hierarchical Asset Performance Assessment Framework, Key Performance Indicators, and Accessibility. Descriptive method with quantitative and qualitative approaches used in this research. Data collection techniques include interviews, observations and questionnaires aimed at asset users. The research results showed that the percentage of effectiveness at Lagadar Market was 20%, Margahayu Market was 34%, and Patrol Market was 22% with an overall average of 24% which was categorized as not good. The conclusion of this research is that Lagadar Market has the lowest level of effectiveness, so improvements need to be made in the future. Keywords: Effectiveness, Operational Performance, Maintenance, Traditional Market Share Link | Plain Format | Corresponding Author (Putri Dewi Purnama)

203	Sustainable development	ABS-20
Application of BIM for Assessment of Health, Comfort, and Convenience Aspects in Lecture Building F of Bandung State Polytechnic Achmad Nur Hairi (a*), Hilman Aulia Putra (a), Yackob Astor (a), Risma Nur Indah (a), Master Jimmy Dekha Syaputra (b) a) Departement of Civil Engineering, Bandung State Polytechnic Jln. Gegerkalong Hilir, Ciwaruga, Parongpong, Kab. Bandung Barat *achmadhairi2707[at]gmail.com b) Oseanland Survei Indonesia Ltd, South Tangerang, Banten, Indonesia Abstract The reliability check of the building is carried out every 5 years for the issuance of a certificate of building functional fitness. In the inspection of the reliability of the building, there is an assessment of health, comfort, and convenience aspects according to PP 16 of 2021. Building F of the Bandung State Polytechnic is a building that was inaugurated in 2009 and requires an examination of these 3 aspects. Along with technological developments, especially in the construction sector, the application of Building Information Modelling (BIM) has mushroomed in various projects in Indonesia. In this journal, the field to BIM method was used to produce a 3-dimensional model of the building with the STONEX X 70 GO terrestrial laser scanner (TLS) and Autodesk Revit. As a result, the average accuracy of the TLS tool compared to manual measurement data was 99.12% with a value in the health aspect of 94% (reliable), the comfort aspect of 81% (less reliable), and the convenience aspect of 82% (less reliable) as well as the cost for routine maintenance in 2024 of Rp. 8,427,710, operational costs of Rp. 92,939,095, and repair costs of Rp. 59,192,099 which continue to increase due to inflations. Keywords: Terrestrial Laser Scanner- BIM- Reliability value- OMR Costs Share Link | Plain Format | Corresponding Author (Achmad Nur Hairi)

204	Sustainable development	ABS-22
REROUTING OF PUBLIC TRANSPORTATION NETWORK IN URBAN AREA BASED ON NETWORK ANALYSIS TOWARDS PURSUING SDGs Mira Lestira Hariani, Rika Fitriyanti, Gitta Karina Universitas Swadaya Gunung Jati Abstract The arrangement of public transport networks in urban areas is one of the success factors of public transport implementation. This research aims to provide recommendations for changes to paratransit routes based on the level of overlap between public transportation so as to produce an efficient, integrated, and sustainable transportation network. The method used is the Network Analysis approach, which uses ArcGIS software to identify the level of overlap in the public transport network. The research results show that the paratransit routes that have a high level of overlap with BRT routes are routes D3, D4, and D5. Meanwhile, paratransit routes that overlap with other paratransit routes are D3, D4, D5, and D6. Based on this, this research provides recommendations for route changes on routes D3, D4, and D5 so as to produce a public transport network with a lower level of overlap than before. Keywords: ArcGIS, Network Analysis, Paratransit, Public Transportation Network Share Link | Plain Format | Corresponding Author (Mira Lestira Hariani)

205	Sustainable development	ABS-24
Analysis of Hotel Service Quality Levels Using the Importance Performance Analysis Method (Study at the Neo Eltari Hotel Kupang) Veronika A.S.M.Flora (a*),Friend Zakharia (a), Ariance A. Lasibey (a) a) Department of Tourism Hospitality Study Program, Kupang State Polytechnic, Kupang -Indonesia *veronikaflora1986[at]gmail.com Abstract The existence of accommodation businesses, particularly hotels, can absorb local labor but requires local workers to demonstrate the best service quality. Hotel Neo-eltari Kupang, as a commercial enterprise, will not escape the competition to attract and retain customers. Receptionists employed by this 3-star hotel need to demonstrate service quality in terms of reliability, responsiveness, assurance, physical evidence, and empathy. Therefore, the purpose of this research is to analyze the level of conformity obtained from the gap between the level of service quality received by guests and the level of importance required and to identify the position of each indicator that needs management attention as shown through the Cartesian diagram results. This study uses the Importance Performance Analysis method. This research is descriptive with a quantitative approach. The sample in this study was determined by the researcher to be 50 respondents distributed accidentally. The results showed that the average level of conformity reached 80.1%, which is good or satisfactory. However, three indicators need major attention: the ability to use the hotel reservation system and software, the speed of transaction check-in and check-out, and showing polite facial and body gestures to guests. These attributes are considered very important but still unsatisfactory to guests (Quadrant I). This may be due to guests (respondents) coming in groups and booking online, which can cause receptionists to be overwhelmed. Communication between receptionists and housekeeping needs to be smoother, and body gestures should be calm when dealing with guests, especially those coming in groups. Keywords: Service quality, Importance Performance Analysis method Share Link | Plain Format | Corresponding Author (Veronika A.S.M Flora)

206	Sustainable development	ABS-30
Determinants of Unemployment for Sustainable Development in Indonesia Iwan Setiawan (a*), Fifi Afiyanti Tripuspitorini (a), Nafisah Ruhana a) a) Accounting Department, Politeknik Negeri Bandung, Indonesia *iwan.setiawan[at]polban.ac.id Abstract Unemployment is an economic problem that has a negative impact on economic, social and psychological dimensions. Efforts to overcome unemployment are part of sustainable development goals. The research aims to find the determining factors for open unemployment rates in Indonesia. It is hoped that the research findings will become a solution to overcome the problem of open unemployment in Indonesia. The research was carried out using a multiple regression analysis model with the Ordinary Least Square (OLS) estimation method. Research data uses time series data for the monthly period 2016-2023. The research results show that an increase in the workforce, economic growth and foreign direct investment have a significant effect on reducing the open unemployment rate. Increasing minimum wages and bank credit have a significant effect on increasing open unemployment rates in Indonesia. Efforts to reduce unemployment are carried out through optimizing economic growth. Economic growth is achieved by using appropriate technology and involving a lot of human resources. Economic growth has the potential to increase business capacity and company profits. Through optimal economic growth, increasing the minimum wage will improve workers welfare, encourage increased company capacity and reduce open unemployment in Indonesia. Keywords: unemployment, economic growth, minimum wage, foreign direct investment Share Link | Plain Format | Corresponding Author (Iwan Setiawan)

207	Sustainable development	ABS-31
INVENTORY OF TWIN TUNNEL CONDITION USING TERRESTRIAL LASER SCANNER (Case Study: Cisumdawu Twin Tunnel on STA 12+628 - 13+100) Satria Ramadhan 1), Adilfi Ramzia Virelqi2), Yackob Astor 3), dan Benny Mulyana Sukandar 4) politeknik Negeri Bandung Abstract This Final Project discusses the use of a Terrestrial Laser Scanner (TLS) for inventorying and monitoring the condition of the Cisumdawu Twin Tunnel with a special focus on components such as Light Fire Extinguishers (APAR), Evacuation Route Signs, Tunnel Geometrics, Emergency Lights, and Safety Signs. TLS is a 3D scanning technology that utilizes laser light to produce a 3D model of the physical environment that is observed as an object. The type of TLS used is Stonex X70GO which is operated mobile (dynamically). Tunnel scanning is carried out by walking along the left side of the tunnel followed by the right side for each tunnel. Scanning was carried out 2 times, namely using a target method and without a target to get the best results. TLS data is processed using GoApp, GoPost, Cube 3D, Autodesk Recap Pro, Autodesk CAD software. Obtained a 3D Model of the Cisumdawu Twin Tunnel which can display the dimensions of the tunnel. There is a comparison of the tunnel dimensions in the 3D Model to the dimensions in the As Built Drawing. For the purposes of inventorying tunnel components, qualitatively the resulting 3D model cannot display very good visualization quality. Some components look dark and distorted. However, quantitatively the 3D model can be used to calculate the number of existing tunnel components. There are 6 Electric Panels, 6 APAR units, 6 Emergency Telephones, 3 meter distance between lights, and 4 Safety Signs in each tunnel. The results of this final project contribute in the form of applying technology to create 3D tunnel models as the main medium for condition surveys and inventory of tunnel components. Keywords: terrestrial laser scanner, tunnel components, 3D Mode Share Link | Plain Format | Corresponding Author (Adilfi Ramzia Virelqi)

208	Sustainable development	ABS-34
Assessing the Impact of Environmental, Social and Governance (ESG) Disclosures on Financial Performance in Taiwan^s Semiconductor Sector (2020-2022) Berty Adi Susanti Accounting, Bandung State Polytechnic Jalan Gegerkalong Hilir, Ciwaruga, Kec. Parongpong, Kabupaten Bandung Barat, Jawa Barat 40559 Abstract This study aims to examine the effect of ESG disclosure on corporate financial performance in semiconductor sector companies in Taiwan listed on the TWSE in 2020-2022. Financial performance is measured using return on investment (ROI). The research sample is semiconductor sector companies listed on the TWSE for 2020 - 2022 (3 years) using a purposive sampling technique. ESG disclosure, which refers to the information a company discloses regarding the impact of its operations on environmental, social, and corporate governance practices, is considered one of the factors that could potentially affect financial performance. In other words, this study aims to test whether the higher the level of ESG disclosure of a company, the higher the level of return on investment obtained. This study used quantitative methods with hypothesis testing, a panel data linear regression analysis technique. The results of this study indicate that environmental disclosure does not effect on the company^s financial performance. This is due to several factors, such as the complexity of environmental issues such as environmental damage that occurs due to irresponsible corporate activities, or investors who have not considered environmental practices and disclosures as one of the factors that determine investment decisions in a company. Meanwhile, social disclosure and governance have a positive effect on the company^s financial performance. Simultaneously ESG affects the company^s financial performance. This shows that investors respond positively to the company^s efforts to increase transparency social accountability and good corporate governance. The implication of this study is the importance for companies to focus on disclosing quality ESG information, as this can increase investor confidence and ultimately have a positive impact on the company^s financial performance. Thus, the results of this study can be considered by companies in formulating policies that encourage companies to improv Keywords: ESG Disclosure, Financial Perfomance (ROI), Semiconductor, Share Link | Plain Format | Corresponding Author (Berty Adi Susanti)

209	Sustainable development	ABS-35
Drugs Supply Control Using the Always Better Control Method Ratna Wulaningrum (a*), Rachel Dewi Lawindra (b), Diyah Permana (c) a,b,c) Accounting Department, Politeknik Negeri Samarinda, Samarinda, Indonesia Abstract This research aims to examine and apply the Always Better Control (ABC) method in inventory control at the Tata Farma Samarinda Pharmacy. The types of data used are quantitative data and qualitative data, as well as data sources originating from primary data and secondary data. Data collection techniques were carried out using interviews and documentation. The data analysis technique uses descriptive quantitative analysis methods to group over-the-counter medicine supplies into three categories (A, B, and C), based on priority levels. The analytical tools used are the ABC method and the Pareto diagram. From the research results, ABC analysis based on use value shows that the number of free drugs in group A is 9 percent, group B is 16 percent, and group C is 75 percent. Meanwhile, ABC analysis based on investment value shows that group A accounts for 27 percent of free drugs, 29 percent for group B, and 44 percent for group C. Based on the results of the ABC analysis, Tata Farma Samarinda Pharmacy has carried out inventory control quite well, although there are still several things that need to be improved so that inventory control, especially over-the-counter medicines, can run better. Keywords: Inventory management- Inventory control- ABC method Share Link | Plain Format | Corresponding Author (Ratna Wulaningrum)

210	Sustainable development	ABS-37
Study Of Detection Diamond Modelling In An Effort To Improve The Ability Of Government Auditors In The East Nusa Tenggara Region To Detect Findings Of Local Government Losses Puteri Ayu Pratiwi-Rosdiana Mata-Simforyani Yeniti Ira Departement of Accounting,Kupang State of Polytechnic Kupang, Indonesia Abstract The purpose of this study was to determine the Detection Diamond model in an effort to improve the ability of East Nusa Tenggara Regional Government Auditors to detect findings of local government losses by including auditor performance and audit quality as moderating variables. The principle of objectivity determines the obligation for the Auditor to be straightforward, intellectually honest and free from conflicts of interest. As the Government Auditor, the Financial and Development Supervisory Agency of ENT Province in the first quarter of 2023 found the value of saving state and regional finances which shows the large number of findings of returns to the State treasury for expenditures that have been realized at 45.99%. The type of research is descriptive quantitative. Data type is primary data. The technique of taking purposive sampling technique with a total of 42 informants. The variables of this study are Objectivity, Regional Loss Detection, Audit Quality, and Auditor Performance. The data analysis technique is quantitative descriptive statistics. The stages used are validity and reliability tests, Goodness-of-fit structure model fit tests, and hypothesis testing. The results of the first hypothesis test state that the objectivity variable has no effect on the detection of regional loss findings through auditor performance and the results of the second hypothesis test show that objectivity through audit quality affects the detection of regional loss findings. Keywords: Objectivity-Regional Loss Detection-Audit Quality-Auditor Performance-Fraud Share Link | Plain Format | Corresponding Author (Puteri Ayu Pratiwi)

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