AGUSTIYANTO, A. Effect of boteli and frequency modification exercise in improving groundstroke forehand really skills in tennis . Jurnal SPORTIF : Jurnal Penelitian Pembelajaran, [S. l.], v. 9, n. 2, p. 274–289, 2023. DOI: 10.29407/js_unpgri.v9i2.19953. Disponível em: https://ojs.unpkediri.ac.id/index.php/pjk/article/view/19953. Acesso em: 18 dec. 2024.