Aprilo, Ians, Poppy Elisano Arfanda, M. Adam Mappaompo, Yasriuddin, and Hasby Asyhari. “Real-Time Video Feedback Training to Improve Tennis Serve Accuracy and Biomechanics in Junior Players”. PEDAGOGIC: Indonesian Journal of Science Education and Technology 6, no. 3 (May 29, 2026): 456–465. Accessed June 5, 2026. https://ejournal.indo-intellectual.id/index.php/ijset/article/view/5677.