LEEYANG, P., J. SAKULFAENG, and T. JULVANICHPONG. “COMPARISON OF THE MENTAL TOUGHNESS OF THAI DISABLED ATHLETES AMONG MEN AND WOMEN”. Journal of Sports Science and Technology, vol. 15, no. 2, Dec. 2015, pp. 357-64, https://he01.tci-thaijo.org/index.php/JSST/article/view/44959.