M, M Dahlan. “KEPEMIMPINAN USMAN BIN AFFAN (Kebijakan Dan Tantangan)”. Al-Hikmah 21, no. 2 (January 15, 2020). Accessed September 20, 2024. https://journal3.uin-alauddin.ac.id/index.php/al_hikmah/article/view/11397.