Tampubolon RC, Tarigan EPL. USULAN PERBAIKAN SISTEM KERJA PADA DEPARTEMEN CNC DI PT OPTIMECH ENGINEERING PRODUCT AND SERVICES. comasiejournal [Internet]. 2023Sep.11 [cited 2024Dec.22];9(2). Available from: https://forum.upbatam.ac.id/index.php/comasiejournal/article/view/7993