SALMINEN, J. On concept of function at Middle Years Programme school in Espoo. LUMAT: International Journal on Math, Science and Technology Education, [S. l.], v. 2, n. 1, p. 79–103, 2014. DOI: 10.31129/lumat.v2i1.1084. Disponível em: https://journals.helsinki.fi/lumat/article/view/1084. Acesso em: 5 may. 2024.