AbdulHamid, Ekhlas. “Hyperactivity in Physical Education Class and Its Relationship Bullying Among Primary Fourth Grade Pupils”. Journal of Physical Education 30, no. 2 (June 28, 2018): 773–786. Accessed June 30, 2026. https://www.jcope.uobaghdad.edu.iq/index.php/jcope/article/view/779.