Delgado Algarra, E. J., Bernal Bravo, C. and Ishida, M. (2019) “Citizenship and plurilingual social actors in Spain and Japan: methodological aspects and introduction to exploratory analysis regarding the plurilingual competition category”, IJERI: International Journal of Educational Research and Innovation. Sevilla, España, (12), pp. 50–62. doi: 10.46661/ijeri.4166.