Tongsrisuk, Tanongsak. “Effects of Self-Directed Program on Exercise with Muay Thai Skills on the Development of Physical Fitness in Untrained Adults”. Education journal Faculty of Education, Nakhon Sawan Rajabhat University 6, no. 2 (August 27, 2023): 83–93. accessed April 28, 2025. https://so02.tci-thaijo.org/index.php/edunsrujo/article/view/260289.