S. Al-kubaisi, R., H. Chelab, S., & Z. M.Al-Duleimi, L. (2014). The Relationship of Enzyme (CPK) with Speed of Motor Response on the Defense skills of The Volleyball. College of Basic Education Research Journal, 13(1), 861–874. https://doi.org/10.33899/berj.2014.Vol13.Iss1.39543