Ngah, Yessar. “Predicting Grip Angle Using Some Kinematical Variables Of Leaving and Flight In Parallel Bar In Men’s Gymnastics (Qatar 2016)”. Journal of Physical Education, vol. 29, no. 1, Sept. 2017, pp. 190-01, https://doi.org/10.37359/JOPE.V29(1)2017.1099.