Mathematical Thinking in Differential Equations Among Pre-Service Teachers. Jurnal Teknologi, [S. l.], v. 63, n. 2, 2013. DOI: 10.11113/jt.v63.2009. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/2009.. Acesso em: 22 jul. 2024.