Shagati, Ahlam. “The Effect of Using Sand in Developing Some Special Physical Abilities and the Performance Level of 100 M Running Among Students of the Faculty of Physical Education and Sports Science”. Journal of Physical Education, vol. 32, no. 1, Mar. 2020, pp. 125-33, https://doi.org/10.37359/JOPE.V32(1)2020.986.