GALLOS CRONBERG, F. Learning linear relationships through independent use of the mathematics textbook. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 21, n. 2, p. 5–22, 2016. DOI: 10.7146/nomad.v21i2.148722. Disponível em: https://tidsskrift.dk/NOMAD/article/view/148722. Acesso em: 8 jan. 2025.