BOJORQUE, G.; HEREDIA, J. Numerical performance of primary school children. Maskana, [S. l.], v. 7, n. 1, p. 1–12, 2016. DOI: 10.18537/mskn.07.01.01. Disponível em: https://publicaciones.ucuenca.edu.ec/ojs/index.php/maskana/article/view/908. Acesso em: 2 may. 2024.