Essa, Mustafa, and Hamid Saleh. “Constructing and Standardizing Compound Tests (Physical _ Skill) According to Phosphate Energy System for National Center for Gifted in Handball Players Aged (15 – 17) Years Old”. Journal of Physical Education, vol. 33, no. 2, June 2021, pp. 79-90, https://doi.org/10.37359/JOPE.V33(2)2021.1144.