Megayanti, Anita, Roy Amrullah Ritonga, and Gustina. 2026. “UPGRADE SISTEM PENGAJUAN CUTI KARYAWAN BERBASIS PLATFORM PHP FRAMEWORK CODEIGNITER PADA KRAKATAU IT”. Jurnal Insan Unggul 14 (1):25-37. http://www.sttikom-iu.ac.id:8081/jurnaliu/index.php/01/article/view/191.