Julasmasari, Fitri, Hendra Saputra, Mury Wijaya, Opie Analia, and Rahmad Illahi. “Analisis Sistem Rantai Pasok PT. Semen Padang”. Jurnal Optimasi Sistem Industri 10, no. 1 (October 4, 2011): 113–120. Accessed March 15, 2025. https://josi.ft.unand.ac.id/index.php/josi/article/view/362.