Tampubolon, R.C. and Tarigan, E.P.L. 2023. USULAN PERBAIKAN SISTEM KERJA PADA DEPARTEMEN CNC DI PT OPTIMECH ENGINEERING PRODUCT AND SERVICES. Computer and Science Industrial Engineering (COMASIE). 9, 2 (Sep. 2023). DOI:https://doi.org/10.33884/comasiejournal.v9i2.7993.