GJONE, Gunnar. Process or object? Ways of solving mathematical problems using CAS. Teaching Mathematics and Computer Science, [S. l.], v. 2, n. 1, p. 117–132, 2004. DOI: 10.5485/TMCS.2004.0052. Disponível em: https://ojs.lib.unideb.hu/tmcs/article/view/14716. Acesso em: 20 oct. 2024.