JURIANA, juriana; TAHKI, K. Peran Pelatihan Mental Dalam Meningkatkan Kepercayaan Diri Atlet Renang Sekolah Ragunan. JOSSAE (Journal of Sport Science and Education), [S. l.], v. 2, n. 1, p. 9–14, 2017. DOI: 10.26740/jossae.v2n1.p9-14. Disponível em: https://journal.unesa.ac.id/index.php/jossae/article/view/846. Acesso em: 2 may. 2024.