Mailasari, M. (2018). Metode Waterfall Pada Sistem Informasi Penjualan Perlengkapan Hewan Berbasis Web. INFORMATION MANAGEMENT FOR EDUCATORS AND PROFESSIONALS : Journal Of Information Management, 2(2), 139-148. Retrieved from http://ejournal-binainsani.ac.id/index.php/IMBI/article/view/872