Anzalna, Akbarakah, and Vina Ayumi. “Development of Employee Attendance Recapitulation Features in Company E-HRD Applications Using the Waterfall Method”. JSAI (Journal Scientific and Applied Informatics) 8, no. 2 (June 30, 2025): 497–502. Accessed July 1, 2026. https://jurnal.umb.ac.id/index.php/JSAI/article/view/8606.