Maruloh M, Sari IP. Penerapan Model Waterfall Pada Sistem Informasi Pembayaran SPP dan Pengisian Rapor SMK Muhammadiyah 13. rpts [Internet]. 2024Jun.20 [cited 2024Jul.3];4(2):89-95. Available from: http://jurnal.bsi.ac.id/index.php/reputasi/article/view/2416