CUNNINGHAM, R. F.; YACONE, E. Algebra Textbooks and Teachers Methods:. INTERNATIONAL JOURNAL OF RESEARCH IN EDUCATION METHODOLOGY, [S. l.], v. 4, n. 1, p. 457–468, 2013. DOI: 10.24297/ijrem.v4i1.3937. Disponível em: https://rajpub.com/index.php/ijrem/article/view/3937ijrem. Acesso em: 15 may. 2024.