Wan Ahmad, W. I. and Ismail, Z. (2010) “Tahap Penghayatan Agama Warga Tua : Pengukuran dan Persoalan Metodologi”, Al-Hikmah, 2, pp. 161-180. Available at: http://spaj.ukm.my/jalhikmah/index.php/jalhikmah/article/view/60 (Accessed: 22October2020).