Inastiana, Fardila, Agung Triayudi, and Endah Tri Esti Handayani. “Implementation of the Waterfall Method for Designing Sisar (Archive Information System) at the National University: Implementation of the Waterfall Method for Designing Sisar (Archive Information System) at the National University”. Jurnal Mantik 4, no. 1 (May 31, 2020): 647-653. Accessed May 13, 2026. https://iocscience.org/ejournal/index.php/mantik/article/view/832.