.H. Qader, Azad, لیث, and محمد. “The Relation Ship Between Mental Rhythmic Sycle and Defending Filed of Free Player in Volleyball”. Al-Rafidain Journal For Sport Sciences (RJSS) 14, no. 47 (June 25, 2025): 159–172. Accessed September 10, 2025. https://edusj.uomosul.edu.iq/index.php/rjss/article/view/35849.