E. Kovalenko, P. D. K. y E. Kovalenko, M. N. (2018) Features of modern textbooks and their importance in the formation of a new education system, Revista Conrado, 14(63), pp. 155-158. Disponible en: https://conrado.ucf.edu.cu/index.php/conrado/article/view/733 (Accedido: 26abril2024).