Using Cognitive Tools to Enhance Understanding in Differential Equations. Jurnal Teknologi, [S. l.], v. 48, n. 1, p. 161–168, 2012. DOI: 10.11113/jt.v48.240. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/240.. Acesso em: 23 jul. 2024.