INTAPANYA, Theerawith, Wimonmas PRACHAKUL, and Phornphon PHIMPHAPHORN. “THE COACHING EFFICACY OF YOUTH SPORT’S COACHES”. Journal of Sports Science and Technology 15, no. 2 (December 28, 2015): 331–342. accessed March 6, 2026. https://he01.tci-thaijo.org/index.php/JSST/article/view/44957.