Herazo Rivera, José David, Sonia Jerez Rodríguez, and Danilza Lorduy Arellano. “Opportunity and Incentive for Becoming Bilingual in Colombia: Implications for Programa Nacional De Bilingüismo”. Íkala, Revista de Lenguaje y Cultura 17, no. 2 (September 11, 2012): 199–213. Accessed February 2, 2025. https://revistas.udea.edu.co/index.php/ikala/article/view/11093.