Mansour, Samir. “The Motor Analysis of Iraqian Senior Swimmers in Some Biokinematic Variables of Backstroke and Its Relationship With the Performance ”. Journal of Physical Education 22, no. 1 (March 28, 2010): 234–250. Accessed May 13, 2024. https://jcope.uobaghdad.edu.iq/index.php/jcope/article/view/665.