WAHYUDI, H.; RIAN PUTRA, S.; YUSMAN, Y. Application of Waterfall Method on Employee Payroll Management System with Codeigniter Framework. Instal : Jurnal Komputer, [S. l.], v. 16, n. 04, p. 67–74, 2024. DOI: 10.54209/jurnalinstall.v16i04.282. Disponível em: https://journalinstal.cattleyadf.org/index.php/Instal/article/view/282. Acesso em: 16 apr. 2026.