aldabbagh, M., موفق, A. Al_Mashhadani, and علی. “Effect of Specific Endurance Exercises By Divided The Body In to Upper and Lower Style on a Number of Physical Variables and Achieving in (50) Meter Breast Stroke Swimming of Juniors”. Al-Rafidain Journal For Sport Sciences (RJSS), vol. 20, no. 65, June 2025, pp. 117-44, doi:10.33899/rajsport.2014.89575.