The role of handball sports activities in developing positive resilience and optimism for sixth-grade students. Damu Journal of Sport Sciences, [S. l.], v. 3, n. 7, p. 15–28, 2026. DOI: 10.64002/60k6em45. Disponível em: https://damujss.com/index.php/home/article/view/394.. Acesso em: 3 feb. 2026.