HJ. SYED HUSSIN, S. A. bin. Kepentingan Zikir dalam Mendidik Rohani dan Jasmani Pendakwah. Jurnal Usuluddin, [S. l.], v. 8, p. 135–144, 1998. Disponível em: http://mjs.um.edu.my/index.php/JUD/article/view/3353. Acesso em: 5 apr. 2025.