purba, Fader Oloan, and Elva Susanti. 2022. “ANALISIS PENERAPAN TOTAL PRODUCTIVE MAINTENANCE (TPM) PADA MESIN CNC DRILLING DI PT AMTEK PRECISION COMPONENTS BATAM”. Computer and Science Industrial Engineering (COMASIE) 7 (7):36-46. https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6143.