aeed, Anas Abdel Sattar, and Juma Muhammad Awad. “The Effect of Mental-Muscular Relaxation Exercises in Developing the Skills of Blocking the Wall and Defending the Court for Volleyball Players”. Kufa Journal of Physical Education Sciences 1, no. 3 (December 15, 2021): 78–93. Accessed June 25, 2026. https://journal.uokufa.edu.iq/index.php/kjpes/article/view/15402.