Atshan, A. 2016. Classified According to Boxers (Sports Confidence as A Feature and Competitive Behavior) and their Impact on the Effectiveness of Skill Performance of Iraq Boxing Clubs for Applicants (Medium Category). Journal of Physical Education. 28, 1 (Mar. 2016), 212–225. DOI:https://doi.org/10.37359/JOPE.V28(1)2016.127.