[1]
E. Victoria Téllez and G. Vite-Martínez, “Multi-grade school and collaborative work for the development of competencies in primary education”, RUGC, vol. 3, no. 3, pp. 198–205, Aug. 2025, Accessed: Oct. 31, 2026. Available: https://revistacientifica.ugc.mx/index.php/rugc/article/view/211