Yousif, Ali. “The Effect Of Mental Exercises On The Development of Visual – Spatial Attention According to WAFR For Some Al Zewra Soccer Players”. Journal of Physical Education 28, no. 4.2 (December 28, 2016): 154–177. Accessed July 6, 2026. https://www.jcope.uobaghdad.edu.iq/index.php/jcope/article/view/240.