Tahseen, Tahseen Hosni. “Summary of the Research Use the Learning-by-Learning Strategy With an Educational Device to Teach and Retain the Front and Back Hitting Skills of a Tennis Ball”. International Journal of Psychosocial Rehabilitation 24, no. 4 (June 30, 2020): 9502–9513. Accessed July 7, 2025. https://psychosocial.com/index.php/ijpr/article/view/6172.