Development of positive behavior and mental toughness skills in young athletes. Baltic Journal of Sport and Health Sciences, [S. l.], v. 2, n. 135, p. 56–57, 2025. DOI: 10.33607/bjshs.v2i135.1623. Disponível em: https://journals.lsu.lt/baltic-journal-of-sport-health/article/view/1623. Acesso em: 20 aug. 2026.