Arribe, E. ., Amanda, D. S., Sulthoni, I., & Saputra, J. (2023). Perancangan Sistem Informasi Absensi Menggunakan Metode Waterfall: Studi Kasus PT Nielsen Company. Journal of Information Technology Ampera, 4(3), 277–285. https://doi.org/10.51519/journalita.v4i3.433