Textbooks as the means for an individual teaching strategy. R&E-SOURCE, [S. l.], n. 7, 2017. DOI: 10.53349/re-source.2017.i7.a519. Disponível em: https://journal.ph-noe.ac.at/index.php/resource/article/view/519. Acesso em: 7 oct. 2025.