“ANALISIS PRODUCTIVE MAINTENANCE PADA MESIN WELDING POLARIS DI PT EXCELITAS”. Computer Science and Industrial Engineering 12, no. 3 (Februari 5, 2025): 88–96. Diakses Oktober 6, 2026. https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/9800.