Optimism Predictive Ability and Psychological Flexibility among Students during COVID-19 Pandemic. Journal of Educational and Social Research, London, U.K., v. 12, n. 5, p. 197, 2022. DOI: 10.36941/jesr-2022-0134. Disponível em: https://www.richtmann.org/journal/index.php/jesr/article/view/13079.. Acesso em: 16 apr. 2024.