VIHOLAINEN, A.; PARTANEN, M.; PIIROINEN, J.; ASIKAINEN, M. A.; HIRVONEN, P. E. The role of textbooks in Finnish upper secondary school mathematics: theory, examples and exercises. NOMAD Nordic Studies in Mathematics Education, [S. l.], v. 20, n. 3-4, p. 157–178, 2015. DOI: 10.7146/nomad.v20i3-4.148696. Disponível em: https://tidsskrift.dk/NOMAD/article/view/148696. Acesso em: 8 jan. 2025.