aeed AAS, Awad JM. The effect of mental-muscular relaxation exercises in developing the skills of blocking the wall and defending the court for volleyball players. KJPES [Internet]. 2021 Dec. 15 [cited 2026 Jun. 25];1(3):78-93. Available from: https://journal.uokufa.edu.iq/index.php/kjpes/article/view/15402