KERGUELÉN-MENDEZ, Ana Rocío; HENAO-CABRALES, Frecya Isabel. A Study of Private High School Teachers’ Optimism of Monteria City. Informes Psicológicos, Medellín, CO, v. 12, n. 2, p. 55–68, 2012. Disponível em: https://revistas.upb.edu.co/index.php/informespsicologicos/article/view/1509. Acesso em: 14 aug. 2026.