The Dynamics of Islamic Civilization during the Time of Caliph Umar bin Khattab: An Integrative Analysis of the Systems of Government, Law, Economy, and Education. Indonesian Journal of Religious, [S. l.], v. 1, n. 2, p. 117–134, 2026. DOI: 10.66052/wn8z3z58. Disponível em: https://ejournal.scedui.com/index.php/ijremi/article/view/991. Acesso em: 17 sep. 2026.