Panjaitan, Mei Yanti, and Romanus Damanik. “Sistem Informasi Catholic Center Medan Berbasis Web”. MEANS (Media Informasi Analisa dan Sistem) 2, no. 2 (January 11, 2018): 134–138. Accessed September 10, 2026. https://ejournal.ust.ac.id/Jurnal_Means/article/view/150.