AWANG KECHIK, A. A. Ajaran Abu Bakar Bappu. Jurnal Usuluddin, [S. l.], v. 4, p. 149–161, 1996. Disponível em: https://ejournal.um.edu.my/index.php/JUD/article/view/3046. Acesso em: 4 may. 2024.