TOONG, N. G.-. The Extent of Use of Concrete-Representational-Abstract (CRA) Model in Mathematics. International Journal For Research In Mathematics And Statistics, [S. l.], v. 6, n. 5, p. 06–30, 2020. DOI: 10.53555/ms.v6i5.1307. Disponível em: https://gnpublication.org/index.php/ms/article/view/1307. Acesso em: 11 may. 2024.