Chen H, Hongsaenyatham P, Wisaraporn W. Developing Management Guidelines to Promote Excellent Tennis for Youth in Chengdu. IARJ [internet]. 2026 Mar. 25 [cited 2026 Sep. 13];6(2):e293232 . available from: https://so03.tci-thaijo.org/index.php/IARJ/article/view/293232