ناجي ضياء, و جواد هيثم. "The Impact of Individual and Group Competitive Exercises to Develop Handling Movements Speed for School Football Players Ages (13) Years of Football Game". Journal of Physical Education, م 27, عدد 2, يونيو، 2015, ص 104-16, https://doi.org/10.37359/JOPE.V27(2)2015.577.