Mathematical Self-Confidence of High School Students: A Study in Costa Rica. Revista Electrónica Educare, [S. l.], v. 23, n. 1, p. 1–15, 2019. DOI: 10.15359/ree.23-1.3. Disponível em: https://www.revistas.una.ac.cr/index.php/EDUCARE/article/view/9158.. Acesso em: 17 apr. 2025.