Assistant. Prof. Dr. Khaled Shaker Mahmoud. “THE PSYCHOLOGICAL ANXIETY AND ITS IMPACT ON THE SERVE RECEPTION PERFORMANCE OF JUNIOR VOLLEYBALL PLAYERS”. Galaxy International Interdisciplinary Research Journal, vol. 11, no. 11, Nov. 2023, pp. 709-18, https://internationaljournals.co.in/index.php/giirj/article/view/4670.