Jalal, Kamal. “The Impact of Integrating Some of the Methods of Learning at the Level of Physical Performance and Skill in Boxing”. Journal of Physical Education 21, no. 2 (June 28, 2009): 142–162. Accessed June 29, 2026. https://www.jcope.uobaghdad.edu.iq/index.php/jcope/article/view/722.