Fauzan LA, Mulhim M, Dirgantoro EW, Amirudin A, Perdinanto P. Groundstroke Training Equipment Innovation for Beginner Tennis Players . IJPESS [Internet]. 2024Dec.30 [cited 2025Mar.31];4(4):497-50. Available from: https://journal.unucirebon.ac.id/index.php/ijpess/article/view/849