Hameed Hammad Khalaf. The Effect of Educational Units with Special Exercises According to the Whitley Strategy on Learning Enjoyment and Improving the Performance of the Serve and Forehand Groundstroke Skills in Tennis for Female Students. Sadewa [Internet]. 2026 Aug. 12 [cited 2026 Oct. 1];4(3):22-33. Available from: https://journal.aripi.or.id/index.php/Sadewa/article/view/2914