Naeem, Ali, and Sareeh Al-Fadhli. “Special Training According to Centrifigural Force Law on Some Physical Abilities In The Second Curve and Achieving 400 M Hurdlers”. Journal of Physical Education 32, no. 1 (March 28, 2020): 90–94. Accessed May 3, 2024. https://jcope.uobaghdad.edu.iq/index.php/jcope/article/view/973.