Ubbas, Moufaq, and Raad Hussein. “Constructing Self – Disability Scale and Its Relationship With Cognitive Planning Offensive Behavior On In Youth Soccer Players Aged 17 – 18 Years Old”. Journal of Physical Education, vol. 31, no. 4, Dec. 2019, pp. 174-8, https://doi.org/10.37359/JOPE.V31(4)2019.941.