AlJaf, Naween Azad Saleh, and Haider Faeq Al-Shamaa. “The Effect of Varied Training Style on The Development of Aerobic Endurance and Half Marathon Achievement for Men”. Journal of Physical Education 33, no. 3 (September 28, 2021): 149–157. Accessed July 7, 2026. https://www.jcope.uobaghdad.edu.iq/index.php/jcope/article/view/1198.