Maruloh, Maruloh, and Irna Prima Sari. “Penerapan Model Waterfall Pada Sistem Informasi Pembayaran SPP Dan Pengisian Rapor SMK Muhammadiyah 13”. Reputasi: Jurnal Rekayasa Perangkat Lunak 4, no. 2 (June 20, 2024): 89-95. Accessed January 4, 2025. http://103.75.24.116/index.php/reputasi/article/view/2416.