Purwanto, Ari. “Kebijakan Strategis Abu Bakar Ash-Shiddiq Pada Masa Khalifah Rasyidah”. Global Education Journal 2, no. 2 (May 7, 2024): 111–122. Accessed December 4, 2025. https://journal.civiliza.org/index.php/gej/article/view/347.