Abedulillah, Maher. “The Level Of Performance Of Free Player And Relation With Arrange Of Teams Of Aljamhoriaa Championship For Men Of Wheelchair Volleyball”. Journal of Physical Education 26, no. 1 (March 28, 2014): 72–87. Accessed June 21, 2026. https://jcope.uobaghdad.edu.iq/index.php/jcope/article/view/48.