Ubilla-Rosales, L., L. Gómez-Álvarez, K. Sáez-Carrillo, and P. Etchegaray-Pezo. “Collaborative Writing of Argumentative Essays in an EFL Blended Course: Chilean Pre-Service Teachers’ Perceptions and Self-Assessment”. Íkala, Revista De Lenguaje Y Cultura, vol. 25, no. 2, Feb. 2020, pp. 307-2, doi:10.17533/udea.ikala.v25n02a10.