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All Journal Jurnal Media Infotama As-Syirkah: Islamic Economic & Financial Journal
Sari, Anggun
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Religion Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Other

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Sistem Informasi Geografis Dalam Pemetaan Kontur Daerah Rawan Banjir Di Desa Laya Kecamatan Baturaja Barat Azwar, Azwar; destiarini, Destiarini; Sari, Anggun
Jurnal Media Infotama Vol 19 No 2 (2023): Oktober
Publisher : UNIVED Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37676/jmi.v19i2.4706

Abstract

Flooding is a relatively high flow of water, and is not accommodated by river channels or canals. The purpose of this study is to analyze flood-prone areas in Laya Village with a spatial-based Geographic Information System (GIS), and identify road sections affected by flooding in Laya Village. with a Spatial-based Geographic Information System (GIS). West Baturaja sub-district has 7 villages and 5 sub-districts and consists of 5 points spread over the area: Batu Putih village, Talang Jawa village, Laya village, Tanjung Agung sub-district, and Batu Kuning sub-district. From the results of the mapping research using the Acrnap GIS software application, it can be mapped in West Baturaja District, obtained data on the number of houses affected by the floods ranging from 150 houses with a flood area of ​​37.73 or a percentage of 47 percent.
Analisis Kinerja Keuangan Perusahaan Umum Daerah (PERUMDA) Air minum di Provinsi Sumatera Utara fadila, Rifka; Sari, Anggun; Regina, Regina; husna, nur; Erwinsyah, Erwinsyah
As-Syirkah: Islamic Economic & Financial Journal Vol. 4 No. 4 (2025): As-Syirkah: Islamic Economic & Financial Journal 
Publisher : Ikatan Da'i Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56672/

Abstract

This study aims to analyze the influence of the Operational Ratio, Cash Ratio, Collection Effectiveness, and Solvency on the Return on Equity (ROE) of Regional Water Supply Companies (PERUMDA Air Minum) in North Sumatra Province. The research employed a quantitative approach using multiple linear regression analysis via SPSS software. Data were obtained from audited financial statements of PERUMDA Air Minum companies. The results show that all independent variables simultaneously have a significant effect on ROE, with an F-value of 7.830 and a significance level of < 0.001. Partially, the Operational Ratio has a significant negative effect, while Collection Effectiveness has a significant positive effect on ROE. The Cash Ratio was found to be insignificant. The coefficient of determination (R²) of 0.380 indicates that 38% of ROE variation is explained by the independent variables. After removing outliers through the boxplot test, the regression model satisfied classical assumption tests and showed normally distributed data. This research contributes empirical evidence emphasizing the importance of operational efficiency and collection performance in improving the financial outcomes of regional enterprises. The findings provide valuable insights for management in developing effective financial strategies while ensuring sustainable public service.
Co-Authors Azwar Azwar Destiarini, Destiarini Erwinsyah Erwinsyah Fadila, Rifka Husna, Nur Regina Regina