MUHAMMAD, S. Kepimpinan Islam: Satu Agenda Pembangunan Ummah. Jurnal Usuluddin, [S. l.], v. 6, p. 131–148, 1997. Disponível em: https://ejournal.um.edu.my/index.php/JUD/article/view/3187. Acesso em: 5 may. 2024.