Pongsa, P., R. RUANGTHAI, and P. PHIMPHAPHORN. “THE EFFECT OF POST ACTIVATION POTENTIATION WARM UP ON SPEED AND H-REFLEX”. Journal of Sports Science and Technology, vol. 15, no. 2, Dec. 2015, pp. 123-32, https://he01.tci-thaijo.org/index.php/JSST/article/view/44941.