“The Effect of Cross-Training on the Development of Some Physical Abilities on the Performance Level of Some Basic Volleyball Skills Experimental Research on a Sample of Soran Volleyball Club Juniors”. Journal of the College of Basic Education 29, no. 118 (April 16, 2023): 455–433. Accessed May 14, 2025. https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/10214.