Zwayen, Jinan Naji, and Nidaa Yasir Farhood. “The Effect of a Proposed Device on Developing the Muscles of Arms Trunk to Perform the Serve from above in Volleyball for Third Stage Students ”. International Journal of Psychosocial Rehabilitation 24, no. 4 (April 30, 2020): 10459–10466. Accessed December 10, 2025. https://psychosocial.com/index.php/ijpr/article/view/6457.