Jamaludin, N., N. Abd Wahab, and A. B. Hamed. “Muslim Perception on Online Zakat Usage in Kuala Lumpur”. The Journal of Muamalat and Islamic Finance Research, vol. 14, no. 1, June 2017, pp. 55-71, https://jmifr.usim.edu.my/index.php/jmifr/article/view/14.