Syukur, Syamsiar. “Implications of Islamic Education in The Era of The Kalifah Umar Bin Khattab in Building Islamic Civilization”. Al-Hikmah Journal for Religious Studies 25, no. 02 (Desember 14, 2023): 122-135. Diakses April 29, 2025. https://tes-ojs.uin-alauddin.ac.id/index.php/al_hikmah/article/view/42909.