L. K. Pérez Ariza and D. C. J. E. H. S. Dr. C. José Emilio Hernández Sánchez, “The comprehension of mathematic problems in primary school”, Trans, vol. 11, no. 2, pp. 15–26, Dec. 2024, Accessed: Aug. 19, 2026. Available: https://transformacion.reduc.edu.cu/index.php/transformacion/article/view/458