Mohameed, Salma, and Luma Samir. “The Effect of Mechanical Gymnastic Mushroom on Learning Circle in Artistic Gymnastics for the Young”. Journal of Physical Education 33, no. 2 (June 28, 2021): 23–30. Accessed June 27, 2026. https://www.jcope.uobaghdad.edu.iq/index.php/jcope/article/view/1138.