Extracurricular activities and self-efficacy in children and adolescents: the case for a school in Quito-Ecuador. Revista ABRA, [S. l.], v. 39, n. 59, p. 73–86, 2019. DOI: 10.15359/abra.39-59.4. Disponível em: https://www.revistas.una.ac.cr/index.php/abra/article/view/12305.. Acesso em: 26 dec. 2024.