“Mental Toughness : What is it and How to Build it doi: 10.4025/reveducfis.v24i1.17523” (2013) Journal of Physical Education (Maringá), 24(1), p. 1–10. Disponível em: https://periodicos.uem.br/ojs/index.php/RevEducFis/article/view/17523 (Acesso em: 4 junho 2026).