Examples and Non-examples as a Road to Understanding the Concept of Function. EduMa: Mathematics education learning and teaching, [S. l.], v. 9, n. 2, p. 90–99, 2020. DOI: 10.24235/eduma.v9i2.7368. Disponível em: https://journal1.uinssc.ac.id/index.php/eduma/article/view/7368. Acesso em: 28 may. 2026.