Satriansyah A, Devy Ferdiansyah, Rinaldo J. Application Prototype Attendance System Garuda Indonesia’s Premium Service Assistant Employees Use The Waterfall Model. CNAHPC [Internet]. 2022 Jan. 5 [cited 2026 Nov. 8];4(1):35-4. Available from: https://www.jurnal.itscience.org/index.php/CNAPC/article/view/1189