Jasim, Omar, and I’nad Jarjees. “‘The Effect of Using Different Training Distances of Speed Endurance on a Number of Physical Attributes in 200m Run’”. Al-Rafidain Journal For Sport Sciences 17, no. 57 (December 1, 2011): 200–227. Accessed October 2, 2025. https://rsprs.uomosul.edu.iq/index.php/rsprs/article/view/50336.