Canales Gabriel, Ricardo. “Oral Language and Pre-Reading Skills in Children of Four to Six Years. A Study on Marginality and Bilingualism in Peru”. Revista de Investigación en Psicología 17, no. 1 (June 16, 2014): 107–119. Accessed June 4, 2025. https://revistasinvestigacion.unmsm.edu.pe/index.php/psico/article/view/8974.