Lopes , Érika M. C. ., Pereira, L. R. ., & Bertone , A. M. A. . (2019). Distance Education in Brazil: An Experience with Mathematical Modeling with GeoGebra Aid . International Journal for Innovation Education and Research, 7(9), 224-240. https://doi.org/10.31686/ijier.vol7.iss9.1738