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All Journal Dinasti International Journal of Education Management and Social Science Jurnal Ilmu Manajemen Terapan (JIMT) Dinasti International Journal of Economics, Finance & Accounting (DIJEFA) Jurnal Kajian Ilmiah Jurnal Ekonomi Annals of Human Resource Management Research JURNAL ECONOMINA Jurnal Ilmiah Ekonomi dan Manajemen
Widjanarko, Wirawan
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Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Social Sciences Other

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Journal : Jurnal Ilmiah Ekonomi dan Manajemen

 1 
Analisis Penerapan Metode Just In Time Dalam Upaya Meningkatkan Efisiensi Biaya Produksi Pada PT. Bakrie Pipe Industries Nafsi, Zakiatin; Widjanarko, Wirawan; Sumantyo, Franciscus Dwikotjo Sri
JURNAL ILMIAH EKONOMI DAN MANAJEMEN Vol. 3 No. 8 (2025): JURNAL ILMIAH EKONOMI DAN MANAJEMEN (JIEM)
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jiem.v3i8.6106

Abstract

The business world is often one of the areas most affected by changing times. The increasingly competitive business environment requires companies to improve product quality while reducing production costs. This study aims to analyze the implementation of the Just In Time (JIT) method in efforts to improve production cost efficiency at PT. Bakrie Pipe Industries. The JIT method was chosen because it is believed to minimize waste, reduce storage costs, and accelerate production flow by ensuring the timely availability of raw materials and components. This study employs a quantitative approach by collecting production, cost, and operational efficiency data from the company for the 2024 period. The results indicate that the implementation of JIT at PT. Bakrie Pipe Industries positively contributes to reducing production costs, although increased production volume does not always result in optimal cost efficiency.
Pengaruh Lingkungan Kerja, Disiplin Kerja, Dan Beban Kerja Terhadap Kinerja Karyawan Pada Rumah Sakit Umum Daerah Kabupaten Bekasi Adelia, Dinda; Narpati, Bintang; Widjanarko, Wirawan
JURNAL ILMIAH EKONOMI DAN MANAJEMEN Vol. 3 No. 8 (2025): JURNAL ILMIAH EKONOMI DAN MANAJEMEN (JIEM)
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jiem.v3i8.6141

Abstract

This study aims to determine the influence of work environment, work discipline, and workload on employee performance at the Regional General Hospital of Bekasi Regency. The research employed a quantitative method with a descriptive approach, and data collection was conducted through the distribution of questionnaires to 85 respondents who are nursing staff in Building D. Data analysis was carried out using multiple linear regression tests with SPSS version 25. The results showed that partially, the work environment variable does not have a significant influence on employee performance. Meanwhile, the variables of work discipline and workload have a positive and significant influence on employee performance. Simultaneously, the three independent variables, work environment, work discipline, and workload have a significant effect on employee performance.
Pengendalian Bahan Baku Pada Bengkel Cat 66paintworks Dengan Menggunakan Metode EOQ (Economic Order Quantity), POQ (Periodic Order Quantity), Dan JIT (Just In Time) Setyo, Alvitho Dwi; Widjanarko, Wirawan; Sumantyo, Franciscus Dwikotjo Sri
JURNAL ILMIAH EKONOMI DAN MANAJEMEN Vol. 3 No. 8 (2025): JURNAL ILMIAH EKONOMI DAN MANAJEMEN (JIEM)
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jiem.v3i8.6151

Abstract

This study aims to compare the Economic Order Quantity (EOQ), Periodic Order Quantity (POQ), and Just In Time (JIT) methods in managing raw material inventory at 66paintworks Workshop. The primary issue lies in high total inventory costs due to the use of conventional forecasting methods. By calculating the Total Inventory Cost (TIC) for each method, the EOQ method was found to be the most optimal. The TIC using EOQ for paint is Rp1,403,760 and for clear coat is Rp1,403,820, significantly lower than POQ (paint: Rp16,450,860; clear: Rp16,450,688) and JIT (paint: Rp1,397,520; clear: Rp1,757,488). EOQ also provides more efficient ordering frequency while maintaining production continuity. Thus, the EOQ method is recommended as the most economical and stable inventory control strategy within this study context.
Co-Authors A.A. Ketut Agung Cahyawan W Adelia, Dinda Adler Haymans Manurung Ambarwati, Eliza Dyah Angelia, Hana Carlos, Gerry Juan Dewi Puspaningtyas Fikri, AWN Firdaus, Fairuz Zayyan Hadita, Hadita Handayani, Milda Hasanuddin Hasanuddin indra Wahyu putra, Christophorus Indrianna Meutia, Kardinah Juan Carlos, Gerry Jumawan, Jumawan Khan, Muhammad Asif Lestari, Dinda Puji Maula, Dela Azkiatul Meutia, Kardinah Indrianna Nafsi, Zakiatin Narpati, Bintang Nera Marinda Machdar Nianwar, Arvia Novita Sari Pitoyo, Bayu Seno Putra, Christophorus Indra Wahyu Reysa, Riris Saputra, Farhan Setyo, Alvitho Dwi Siagian, Rosalina Sobari, Mohamad Sumantyo, Franciscus Dwikotjo Sri Zen, Agustian