الهاشمي أ., and طاهر ر. “Trends of Sponsored Students in Postgraduate Studies towards the Practice of Voluntary Charitable Works: A Field Work”. Journal of Islamic Studies, Prince of Songkla University, vol. 8, no. 2, Dec. 2017, pp. 117-38, https://so03.tci-thaijo.org/index.php/JOIS/article/view/166920.