Helling, Lydia Salvina. “Metode Waterfall Pada Rancang Bangun Sistem Informasi Pelayanan Jasa Laundry Di Fast Clean Bogor”. JAIS - Journal of Accounting Information System 4, no. 2 (December 1, 2023): 8-14. Accessed July 23, 2024. http://jurnal.bsi.ac.id/index.php/jais/article/view/2943.