Amir, Ahmad Nabil, and Tasnim Abdul Rahman. “Early Ideas of Reform in Hamka’s Ayahku: A Historical and Religious Struggle of Muhammadiyah in Minangkabau ”. Journal of Indonesian Islamic Studies 4, no. 2 (May 16, 2025): 68–78. Accessed October 2, 2025. http://ejournal.iainpalopo.ac.id/index.php/jiis/article/view/6166.