H. AlSweede, Ahmed. “An Evaluative Study of Some Skill Faults of Volleyball Tennis Serve Assistant Professor Ahmed”. Al-Rafidain Journal For Sport Sciences 17, no. 56 (June 1, 2011): 72–84. Accessed October 2, 2025. https://rsprs.uomosul.edu.iq/index.php/rsprs/article/view/50238.