Martínez-Domínguez, M. and Peña-Infante, D.C. (2019) “Particularities of the teaching learning process in themultigrade group”, EduSol, 19(67), pp. 80–93. Available at: https://edusol.cug.co.cu:443/index.php/EduSol/article/view/704 (Accessed: 12 November 2026).