AHLBERG, A. Children with impairments learning numbers. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 11, n. 4, p. 97–135, 2006. DOI: 10.7146/nomad.v11i4.147998. Disponível em: https://tidsskrift.dk/NOMAD/article/view/147998. Acesso em: 9 jan. 2025.