Aprilo, Ians, Poppy Elisano Arfanda, M. Adam Mappaompo, Yasriuddin, and Hasby Asyhari. 2026. “Real-Time Video Feedback Training to Improve Tennis Serve Accuracy and Biomechanics in Junior Players”. PEDAGOGIC: Indonesian Journal of Science Education and Technology 6 (3):456-65. https://doi.org/10.54373/ijset.v6i3.5677.