Falih, A. 2013. Some indicators explosive power and speed of the motor by the upper body and the percentage of their contribution to the completion of the activities of chucking Reconstruction 13-15 years. Journal of Physical Education. 25, 4 (Dec. 2013), 80–105. DOI:https://doi.org/10.37359/JOPE.V25(4)2013.620.