FIRDAUS, K. THE CONTRIBUTION OF GRIP STRENGTH AND WAIST FLEXIBILITY ON THE ACCURACY OF FLAT SERVICE FOR TENNIS PLAYERS OF PTL UNP. INTERNATIONAL JOURNAL OF RESEARCH IN EDUCATION METHODOLOGY, [S. l.], v. 7, n. 4, p. 1309–1312, 2016. DOI: 10.24297/ijrem.v7i4.4350. Disponível em: https://rajpub.com/index.php/ijrem/article/view/4350ijrem. Acesso em: 19 may. 2024.