JUÁREZ, F.; CONTRERAS, F. The influence of optimism and socioeconomic characteristics on leadership practices. International Journal of Psychological Research, [S. l.], v. 5, n. 2, p. 18–29, 2012. DOI: 10.21500/20112084.733. Disponível em: http://revistas.usbbog.edu.co/index.php/IJPR/article/view/733. Acesso em: 29 jan. 2023.