WANDIK, Yos et al. Interrelation of mental toughness, religiosity, and happiness of elite adolescent athletes based on gender, type of sport, and level of education. Retos, [S. l.], v. 56, p. 981–989, 2024. DOI: 10.47197/retos.v56.103469. Disponível em: https://revistaretos.org/index.php/retos/article/view/103469. Acesso em: 9 nov. 2026.