A. Thamir, “An Analytical Study Of Some Kinematical Variables Affecting The Start Of Backstroke Comparison Between National Iraqi Swimmers and An International Swimmer”, jope, vol. 22, no. 3, p. 75, Sep. 2010, Accessed: Jul. 09, 2026. [Online]. Available: https://www.jcope.uobaghdad.edu.iq/index.php/jcope/article/view/1551