R. . . Salam, A. . . Safi, and A. . Barkawi, “The impact of the Perkins-Blythe model on analytical thinking and learning the skill of receiving the serve among students of the College of Physical Education and Sports Sciences at Waist University”, wjoss, vol. 19, no. 2, pp. 703–720, Apr. 2024, doi: 10.31185/wjoss.506.