Santíño Grelo, C., Rodríguez-García, A.-M., & Hinojo Lucena, M. A. (2017). Research on the choice of Spanish as a foreign language in the School of Portalegre (Portugal). Enseñanza & Teaching: Interuniversity Journal of Didactic, 35(1), 143–160. https://doi.org/10.14201/et2017351143160