TUFAIL, H. M. . Kamal Omar. Hajj and Umra . Islamic Studies, [S. l.], v. 20, n. 04, p. 395–396, 1981. Disponível em: http://irigs.iiu.edu.pk:64447/ojs/index.php/islamicstudies/article/view/6019. Acesso em: 6 dec. 2025.