Delgado Arévalo, D. (2017) «The Development of Functional Language Through Games in First Grade of Primary Education», Educación y Futuro: Revista de Investigación Aplicada y Experiencias Educativas, (37), pp. 69–92. Disponibile su: https://educacionyfuturo.com/educacionyfuturo/article/view/8117 (Consultato: 22 luglio 2026).