ดาราฉาย ซ. “A Discourse Analysis of Islamic Sermons in Friday Khutbah Books of Yakoob Thuamprathom”. Journal of Liberal Arts Prince of Songkla University, vol. 9, no. 2, Dec. 2017, pp. 212-37, https://so03.tci-thaijo.org/index.php/journal-la/article/view/107729.