RICARDO LOPES, Charles et al. Effect of 5-Week Plyometric Training on Sand Versus Grass on Jumping and Sprinting Performance in Under-20s Soccer Players. International Journal of Strength and Conditioning, Leeds, UK, v. 5, n. 1, 2025. DOI: 10.47206/yzfemf80. Disponível em: https://journal.iusca.org/index.php/Journal/article/view/308. Acesso em: 8 oct. 2025.