“A Comparative Study of High-Intensity Pregnancy in Some Biochemical Variants of Short and Long Distance Runners for a Group under the Age of (18) Years”. Journal of the College of Basic Education 27, no. 112 (March 27, 2022): 47 – 60. Accessed July 3, 2024. https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/5097.