1.
Viholainen A, Partanen M, Piiroinen J, Asikainen MA, Hirvonen PE. The role of textbooks in Finnish upper secondary school mathematics: theory, examples and exercises. NOMAD [Internet]. 2015 Nov. 19 [cited 2025 Jan. 8];20(3-4):157–178. Available from: https://tidsskrift.dk/NOMAD/article/view/148696