พระครูสุเมธปทุมาภรณ์. “4 Dhãtu and the Meditation Practice in Buddhism”. Academic MCU Buriram Journal 6, no. 1 (June 17, 2021): 311–322. Accessed May 27, 2022. https://so06.tci-thaijo.org/index.php/ambj/article/view/247521.