Yasir, Dr. Alaa Muhsun. “The Effect of Some Coordination Abilities on Developing Kinematical Motor Behavior and the Accuracy of Jump Spike Serve in Volleyball Players”. International Journal of Psychosocial Rehabilitation 24, no. 4 (June 30, 2020): 9142–9149. Accessed August 12, 2025. https://www.psychosocial.com/index.php/ijpr/article/view/6133.