Abdull karim Al-Hayali, M., معن, Shams Al-Deen, A., & ازاد. (2025). The effect of two methods of ballistic resistance training on some aspects of upper body strength in the long jump for Specialized School athletes. Al-Rafidain Journal For Sport Sciences (RJSS), 26(80), 87–97. https://doi.org/10.33899/rjss.2023.1783840