EARLY, Dwi Rahmayani; ALHUDA, Alhuda. Design an Alumni Data Collection Information System Using the Waterfall Method. Knowbase : International Journal of Knowledge in Database, [S. l.], v. 2, n. 2, p. 130–141, 2022. DOI: 10.30983/ijokid.v2i2.5855. Disponível em: https://ejournal.uinbukittinggi.ac.id/index.php/ijokid/article/view/5855. Acesso em: 17 mar. 2026.