Sangkaew, Teeraphan, Krirkwit Phongsri, Chamnan Channasee, and Sonthaya Sriramatr. 2026. “THE PHYSIOLOGICAL AND BIOMECHANICAL RESPONSES IN TENNIS COMPETITION ON A CLAY COURT OF YOUTH TENNIS PLAYERS”. Academic Journal of Thailand National Sports University 18 (3). Chonburi, Thailand:35-46. https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/273823.