Nasution R, Nurhanifah. Utilization of Databases in Planning the Preaching of the Muhammadiyah Regional Leadership of Medan City. JDK [Internet]. 2024 Nov. 20 [cited 2025 Sep. 8];9(2):55-62. Available from: https://journal.iaincurup.ac.id/index.php/JDK/article/view/11438