Jebbar, Mohammed, and Assmaa Hekmat. “The Effect of (Think - Pair – Share) Strategy on Performing Some Volleyball Fundamental Skills in Second Grade Secondary School Students”. Journal of Physical Education, vol. 32, no. 3, Sept. 2020, pp. 99-106, https://doi.org/10.37359/JOPE.V32(3)2020.1025.