Putra, Gilang Abdiansyah, and Nofriani Fajrah. “PENGENDALIAN KUALITAS PRODUK PIPA DI PT.CITRA TUBINDO TBK”. Computer and Science Industrial Engineering (COMASIE) 4, no. 3 (January 23, 2021): 126–133. Accessed November 24, 2024. https://forum.upbatam.ac.id/index.php/comasiejournal/article/view/3425.