A.A. Ghafoor, R. and رافع 2025. Comparative study of achievement motivation in sports for volleyball players in the scientific and humanitarian colleges of the University of Mosul. Al-Rafidain Journal For Sport Sciences (RJSS). 19, 63 (Jun. 2025), 103–115. DOI:https://doi.org/10.33899/rajsport.2013.76399.