Don, Abdul Ghafar, and Hailan Hj. Salamon. 2009. “Dakwah Kepada Non-Muslim Di Malaysia: Konsep, Pendekatan Dan Cabaran”. Al-Hikmah 1 (January), 39-54. https://spaj.ukm.my/jalhikmah/index.php/jalhikmah/article/view/45.