dwinurabdayanti, dwinurabdayanti, and G. Brotosaputro. “RANCANG BANGUN SISTEM INFORMASI ADMINISTRASI KURSUS MENYELAM BERBASIS WEB STUDI KASUS: PT. MASTER SELAM INDONESIA”. IDEALIS : InDonEsiA JournaL Information System, Vol. 2, no. 3, May 2019, pp. 18-25, https://jom.fti.budiluhur.ac.id/index.php/IDEALIS/article/view/522.