Muhammad, Khalil. "Design and Standardization of a Test of Spatial Awareness and Distance for the Skills of Passing from above and below for Volleyball Players Aged (12-14 Years)". Journal of Physical Education, م 36, عدد 3, سبتمبر، 2024, ص 782-96, https://doi.org/10.37359/JOPE.V36(3)2024.2195.