Fong, Shirley S.M., Candy K.Y. Cheung, Janice Y. Ip, Joe H.N. Chiu, Karen L.H. Lam, and William W.N. Tsang. 2012. “Sport-Specific Balance Ability in Taekwondo Practitioners”. Journal of Human Sport and Exercise 7 (2):520-26. https://doi.org/10.4100/jhse.2012.72.15.