Gazi Ismaeel, H., ليث and سعود . Sport self- efficiency and its relation to level and Endurance of performance of same Gymnastics some apparatus for the students of physical Education college. Al-Rafidain Journal For Sport Sciences (RJSS). 15, 52 (), 289–210. DOI:https://doi.org/10.33899/rajsport.2009.6216.