Palayukan TD, Pahrudin P, Rasyad RZ. Website Design for Spiritual Items at The Catholic Church of Saint Lukas Parish Samarinda Using The Waterfall Method. ProBisnis [Internet]. 2025 Apr. 28 [cited 2026 May 9];16(2):41-8. Available from: https://ejournal.joninstitute.org/index.php/ProBisnis/article/view/913