Damayanti, Nita Rosa, and Evi Yulianingsih. “Design Aplikasi Catatan Daily Berbasis Android Menggunakan Metode Waterfall”. Journal of Information Technology Ampera 5, no. 1 (May 1, 2024): 52–60. Accessed October 26, 2025. https://journal-computing.org/index.php/journal-ita/article/view/469.