Damanik, Romanus, and Tiara Julia Sipayung. “Simalungun Mardingding Protestant Christian Church Database Design, Silimakuta District, Simalungun Regency”. KAKIFIKOM (Kumpulan Artikel Karya Ilmiah Fakultas Ilmu Komputer) 3, no. 2 (November 5, 2021): 51–56. Accessed July 22, 2024. https://ejournal.ust.ac.id/index.php/KAKIFIKOM/article/view/1488.