aldabbagh M, Al_Mashhadani A. 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. RJSS [Internet]. 2014 Aug. 1 [cited 2025 Oct. 2];20(65):117-44. Available from: https://rsprs.uomosul.edu.iq/index.php/rsprs/article/view/50179