The Era of Omar ibn al-Khattab: A Study of the Policies Implemented. Journal of Scientific Development, "for Studies and Research" (JSD), [S. l.], v. 7, n. 27, p. 94–98, 2026. DOI: 10.61212/. Disponível em: https://jsd.sdasmart.org/index.php/jsd/article/view/540. Acesso em: 23 sep. 2026.