Design of a Web-Based Church Notice Board System Using the Waterfall Method. INOVTEK Polbeng - Seri Informatika, [S. l.], v. 10, n. 3, p. 1542–1552, 2025. DOI: 10.35314/hwnhzk87. Disponível em: https://jurnal.polbeng.ac.id/index.php/ISI/article/view/1197.. Acesso em: 7 oct. 2025.