Ab. Hamid, F. @ A. F. “Sumbangan Dato Haji Ismail Yusoff (1915-1988) Dalam Persuratan Islam Di Kelantan”. Jurnal Usuluddin, vol. 19, June 2004, pp. 93-114, http://mojes.um.edu.my/index.php/JUD/article/view/4144.