Rubiano, C. I., C. Frodden, and G. Cardona. “The Impact of the Colombian Framework for English (COFE) Project: An insiders’perspective”. Íkala, Revista De Lenguaje Y Cultura, vol. 5, no. 1, Apr. 2000, pp. 37-56, doi:10.17533/udea.ikala.8545.