“ANALISIS TOTAL PREVENTIVE MAINTANANCE PADA MESIN DRILLING KOCH DI PT. XYZ”, comasiejournal, vol. 6, no. 4, pp. 69–78, Jul. 2022, Accessed: Oct. 06, 2026. Available: https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/5307