HAIDER HADI , A. L. . S. The relationship between positive thinking and self-confidence among secondary school. Basra studies journal, [S. l.], v. 1, n. 65, p. 323–342, 2026. Disponível em: https://bsj.uobasrah.edu.iq/index.php/bsj/article/view/412. Acesso em: 30 mar. 2026.