Effectiveness of Tennis Ball Dropping Machine in Improving Forehand and Backhand Training for Tennis Court Athletes in West Tanjung Jabun. Compet. J. Pendidik. Kepelatihan Olahraga [Internet]. 2025 Aug. 6 [cited 2025 Aug. 18];17(2):1935-42. Available from: https://competitor.ojsunm.ac.id/index.php/competitor/article/view/8