Abdullah Masmuh. “PERAN MUHAMMADIYAH DALAM MEMBANGUN PERADABAN DI DUNIA”. Gema Kampus IISIP YAPIS Biak 15, no. 1 (April 29, 2020): 78 - 93. Accessed July 7, 2025. https://iyb.ac.id/jurnal/index.php/gemakampus/article/view/107.