STUDER, T.; LENZ, P.; METTLER, M. Developing instruments for the assessment of foreign-language proficiency (French/English): Goals, context, outcomes and methodological aspects of the IEF project. Swiss Journal of Educational Research, [S. l.], v. 26, n. 3, p. 419–434, 2004. DOI: 10.24452/sjer.26.3.4687. Disponível em: https://sjer.ch/article/view/4687. Acesso em: 24 apr. 2024.