ดาราฉาย ซัลมาณ. “A discourse analysis of Islamic sermons in Friday Khutbah books of Yakoob Thuamprathom”. Journal of Liberal Arts Prince of Songkla University 9, no. 2 (December 29, 2017): 212–237. accessed September 11, 2026. https://so03.tci-thaijo.org/index.php/journal-la/article/view/107729.