“SISTEM INFORMASI MANAJEMEN PERMINTAAN PERUBAHAN SYSTEM APPLICATION AND PRODUCT (SAP) PADA PT. KRAKATAU INFORMATION TECHNOLOGY”. Jurnal Insan Unggul, vol. 12, no. 1, Maret 2024, hlm. 95-127, https://jurnal-iu.sttikom-iu.ac.id/index.php/01/article/view/155.