Mohd Yunus, A. R., A. G. Don, and M. Shafie. “Aktiviti Dakwah Pertubuhan Kebajikan Darul Islah (PERKID) Terhadap Para Pelatih”. Al-Hikmah, Vol. 3, Oct. 2011, pp. 23-44, https://spaj.ukm.my/jalhikmah/index.php/jalhikmah/article/view/4.