MARBÁN, J. M.; SINTEMA, E. J. Pre-service secondary teachers’ knowledge of the function concept: A cluster analysis approach. JRAMathEdu (Journal of Research and Advances in Mathematics Education), [S. l.], v. 5, n. 1, p. 38–53, 2020. DOI: 10.23917/jramathedu.v5i1.9703. Disponível em: https://journals2.ums.ac.id/jramathedu/article/view/9273. Acesso em: 17 nov. 2025.