KEPEMIMPINAN PROFETIK UMAR BIN KHATTAB DAN UMAR BIN ABDUL AZIZ. Ummul Qura Jurnal Institut Pesantren Sunan Drajat (INSUD) Lamongan, [S. l.], v. 10, n. 2, p. 19–31, 2017. DOI: 10.55352/uq.v10i2.435. Disponível em: https://ejournal.unsuda.ac.id/index.php/UQ/article/view/435. Acesso em: 22 apr. 2026.