Vera V. Levites, A. V. B. N. V. I. O. I. L. (1) «Model-Based educational technique to develop mathematical concepts in preschoolers», Opción, 350, pp. 2330-2362. Disponible en: https://www.produccioncientificaluz.org/index.php/opcion/article/view/27473 (Accedido: 27abril2024).