เหลืองพิทักษ์ ปิ่นปินัทธ์. “Natkarnthamtham and the Development of Their Own Potential”. MCU Haripunchai Review 3, no. 1 (July 6, 2019): 78–88. Accessed May 2, 2024. https://so04.tci-thaijo.org/index.php/JMHR/article/view/184910.