Optimism, Pessimism, and Their Relationship to Some Psychological Variables among Students of Al-Merghib University in Al-Khums City. Ejthad for Scientific Research, [S. l.], v. 2, n. 18, p. 31–60, 2026. DOI: 10.65893/esr.v2i18.77. Disponível em: https://ejthad.ly/index.php/httpdocs/article/view/77. Acesso em: 14 jun. 2026.