Atmojo?, Yudo, Prapto Nugroho, and Sugiharto -. “KEKUATAN GENGGAMAN DAN KEKUATAN LENGAN DALAM GROUNDSTROKE FOREHAND DRIVE TENIS LAPANGAN”. Journal of Sport Science and Fitness 1, no. 1 (1). Accessed July 23, 2024. https://journal.unnes.ac.id/sju/jssf/article/view/214.