Selim, M. and Khadem, M. 2020. The Effect of Using Physical Exercises Using Different Speed Resistance, Explosive and Speed – Strengths In Soccer Players Under 19 Years Old. Journal of Physical Education. 32, 3 (Sep. 2020), 77–85. DOI:https://doi.org/10.37359/JOPE.V32(3)2020.1022.