Hendriyati, Penny, Afrasim Yusta, and Rio Agus Suparman. “Sistem Informasi Pelayanan Bahan Baku Pada PT. Krakatau Posco”. Jurnal Insan Unggul 7, no. 1 (March 1, 2019): 71–96. Accessed October 22, 2025. http://www.sttikom-iu.ac.id:8081/jurnaliu/index.php/01/article/view/95.