Thamer, Ahmed, and Husham Hamdan. “Analytical Study of Some Kinematical Variables Affecting Turnover Phase in 200m Freestyle Swimming in Specialized Schools Swimmers”. Journal of Physical Education 34, no. 2 (June 28, 2022): 239–246. Accessed May 9, 2024. https://jcope.uobaghdad.edu.iq/index.php/jcope/article/view/1326.