NAMAT SHAWKAT, KOMAR. “The Effect of Special Exercises Using Added Weights (dumbbells) in Developing Special Endurance, Strength and Speed, and Some Basic Football Skills for Players Aged 16-17 Years”. Wasit Journal of Sports Sciences, vol. 20, no. 3, July 2024, pp. 230-6, https://doi.org/10.31185/wjoss.551.