“The Effect of Compound Skill Exercises in Developing the Skills of Serving and Crushing in Volleyball - Sitting at Wissam Al Majd Club”. Journal of the College of Basic Education 19, no. 77 (December 20, 2022): 609–624. Accessed July 17, 2024. https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/7598.