Abedulsattar, Muna, and Tariq Hassan. “Study the Performance of Some Physical and Mental Capacity for the Day Zero and Embarrassment According to Bio-Rhythm”. Journal of Physical Education 20, no. 3 (September 28, 2008): 184–199. Accessed June 30, 2026. https://www.jcope.uobaghdad.edu.iq/index.php/jcope/article/view/789.