sukisno, sukisno, and vivi ayu khasanah. “Rancang Bangun Sistem Informasi Perpustakaan Berbasis Web Menggunakan Model Waterfall”. JURNAL TEKNIK INFORMATIKA UNIS 6, no. 1 (February 20, 2020): 49–53. Accessed October 25, 2025. http://www.ejournal.unis.ac.id/index.php/jutis/article/view/42.