علي فلاح محمد حسن . H. M. H. A. "The Effect of Lengthening and Shortening Circle Exercises With Relative Weights in Developing the Explosive Ability of the Two Legs of Young Soccer Players". مجلة المستنصرية لعلوم الرياضة, فبراير، 2024, ص 457-64, https://mjss.uomustansiriyah.edu.iq/index.php/mjss/article/view/1034.