Combination of plyometric and ladder drill: Its impact on improving speed, agility, and leg muscle power in badminton. Jurnal SPORTIF : Jurnal Penelitian Pembelajaran, [S. l.], v. 9, n. 2, p. 290–309, 2023. DOI: 10.29407/js_unpgri.v9i2.20468. Disponível em: https://ojs.unpkediri.ac.id/index.php/pjk/article/view/20468. Acesso em: 2 apr. 2025.