Grageda, Eduardo, and Roberto Rodríguez. “Methodological Proposal for Teaching Spanish in the School for Deaf Children Esmirna”. Innovare Revista de Ciencia Y Tecnología, translated by Darwin Reyes Hernández, vol. 7, no. 2, Dec. 2018, pp. 47-67, https://revistas.unitec.edu/innovare/article/view/72.