PAVILAS, Chaiyasith, and Chalerm CHAIWATCHARAPORN. “COMPARISION IN MAXIMUM BALL VELOCITY OF 3-STRUCTURAL CHARACTERISTIC RACKETS USING SIMULATED TENNIS FLAT SERVE”. Journal of Sports Science and Technology 14, no. 2 (December 29, 2014): 1–16. accessed February 21, 2026. https://he01.tci-thaijo.org/index.php/JSST/article/view/44134.