Haryati, Haryati, Nurfitria Khoirunnisa, Trisa Divia, and Tania Cahaya. “Designing a Marketing Information System for Pesona Permata Hijau 2 Housing Using the Waterfall Method”. JESII: Journal of Elektronik Sistem InformasI 1, no. 1 (June 23, 2023): 22–32. Accessed May 13, 2026. https://journal.angga.us/index.php/jesii/article/view/3200.