KAMUTSRI, T., A. TREERAJ, C. SRIWILAI, and J. NABSANIT. “THE PHYSICAL FITNESS NORMS OF THAI UNIVERSITY ATHLETES”. Journal of Sports Science and Technology, vol. 15, no. 2, Dec. 2015, pp. 145-58, https://he01.tci-thaijo.org/index.php/JSST/article/view/44943.