Kadhim, Haitham, وآخرون. "The Effect of Competitive Exercises Using Physical Performance Tracking Technology (GPS Playertek Plus and Polar H9) on Developing Speed in Iraqi Premier League Football Players". Journal of Physical Education, م 36, عدد 4, ديسمبر، 2024, ص 961-79, https://doi.org/10.37359/JOPE.V36(4)2024.2225.