A. Mohsen, “A comparative analysis of some Albayukinmetekih variables and efficiency ratio between certain types of skill transmission game of volleyball”, jope, vol. 23, no. 4, p. 22, Dec. 2011, Accessed: Jul. 03, 2026. [Online]. Available: https://www.jcope.uobaghdad.edu.iq/index.php/jcope/article/view/1634