Naji Hussein, Hasanain. “Emotional Arousal and Its Relationship to Visual Perceptual Speed and Accuracy of Defending Skill of the Volleyball Court”. International Journal of Psychosocial Rehabilitation 24, no. 3 (May 31, 2020): 7823–7829. Accessed May 22, 2025. https://www.psychosocial.com/index.php/ijpr/article/view/4413.