Islamic Civilization During the Caliphate of Abu Bakr al-Siddiq and Umar ibn al-Khattab. Journal Islamic Studies and Syariah, [S. l.], v. 1, n. 1, p. 49–58, 2026. Disponível em: https://ejournal.al-fatihah.id/index.php/jurissy/article/view/16.. Acesso em: 14 apr. 2026.