Zaman, Qomaru, Firman Johan, and Hervianto Nugroho. “MENDUKUNG INDUSTRI PERTAHANAN DENGAN ANALISA PROSES PENGOLAHAN BESI SPONS DARI PASIR BESI SEBAGAI BAHAN BAKU BAJA”. Journal of Industrial Engineering & Management Research 3, no. 6 (April 9, 2022): 17-27. Accessed September 26, 2022. https://jiemar.org/index.php/jiemar/article/view/321.