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All Journal Journal of Energy, Material, and Instrumentation Technology Jurnal Ekonomika Manajemen Dan Bisnis
Muslim, Anis Aulia
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Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

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Initial Study of Intrusion on The Serambi Nusantara Coast Using Geoelectrical Methods Delianti, Delianti; Choerullah, Andy; Muslim, Anis Aulia
Journal of Energy, Material, and Instrumentation Technology Vol 6 No 2 (2025): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v6i2.293

Abstract

The Serambi Nusantara area, based on geological conditions, has alluvial formations with sand that almost dominates, interspersed with clay rock throughout the location with swamp conditions in most parts of the area. Morphologically, Serambi Nusantara is a coastal area. Most of the population in this area uses groundwater to meet their water needs due to the increasing intensity of use so groundwater is decreasing and there is emptiness in the well cavities, this results in seawater seeping from these cavities and mixing with groundwater which causes water problems in this area, especially the salinity of the water quality. This research was carried out to determine the quality of groundwater using the Induction Polarization (IP) method, in the Serambi Nusantara area where the research stage included geological mapping of the area with results according to the description above, checking water quality data and geoelectric measurements of induced Polarization (IP). In the research results, it was found that the cross-sectional chargeability value at a depth of ± 20 m showed low chargeability (-10 msec), indicating an indication of seawater intrusion in the research area. This value is similar to previous research.
Analisis Dampak kenaikan tarif PPN 12% Pada stabilitas keuangan keluarga karyawan sektor industri di Balikpapan ., Mustari; Muslim, Anis Aulia; ., Delianti
Jurnal Ekonomi Manajemen dan Bisnis (JEMB) Vol. 5 No. 1 (2026): Januari - Juni
Publisher : CV. ITTC INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jemb.v5i1.4179

Abstract

Value Added Tax (VAT) is a fiscal policy instrument that plays an important role in increasing government revenue. However, increases in the VAT rate also have the potential to exert pressure on household economic conditions. The implementation of a VAT rate increase to 12% has led to higher prices of goods and services, particularly daily consumption needs. This condition may affect purchasing power and household financial stability, especially among industrial sector employees in Balikpapan City, who generally have fixed incomes and household expenditure structures that are sensitive to price changes. This study aims to analyze the effect of the 12% VAT rate increase on the financial stability of households of industrial sector employees in Balikpapan City. The research employs a quantitative approach with descriptive and verificative research designs. The study population consists of 70 industrial sector employees in Balikpapan City, with a sample of 42 respondents selected using the Slovin formula and a random sampling technique. Data were collected through Likert-scale questionnaires, observations, interviews, and literature reviews. The data sources comprise primary and secondary data. Data analysis was conducted using SPSS software through validity tests, reliability tests, classical assumption tests, simple linear regression analysis, t-tests, and coefficient of determination analysis.The results indicate that the 12% VAT rate increase has a negative and significant effect on the financial stability of households of industrial sector employees. The majority of respondents experienced an increase in monthly household expenditures following the implementation of the policy, resulting in a decline in household budget management capacity. The increase in the VAT rate to 12% is proven to reduce household financial stability among industrial sector employees. These findings emphasize the importance of considering microeconomic impacts in the formulation of fiscal policy to ensure that efforts to increase government revenue do not impose excessive pressure on the welfare of fixed-income households.
Co-Authors ., Delianti Choerullah, Andy Delianti, Delianti Mustari ., Mustari