Mahendra, Yusril Ihza. “Combining Activism and Intellectualism: The Biography of Mohammad Natsir (1908-1993)”. Studia Islamika 2, no. 1 (March 30, 2014). Accessed June 16, 2025. https://studiaislamika.ppimcensis.or.id/index.php/studia-islamika/article/view/844.