References
- Conselho da Europa. Quadro Europeu Comum de Referência para as Línguas – Aprendizagem, Ensino e Avaliação. Asa, 2001.
- Long, M.
“The Role of the Linguistic Environment in Second Language Acquisition” . Handbook of Second Language Acquisition, edited by W. Bhatia e T. Ritchie, Academic Press, 1996, pp. 413–68. DOI: 10.1016/B978-012589042-7/50015-3 - Tomlinson, B. “Materials Development for Language Learning and Teaching”. Language Teaching, No. 45, issue 2, 2012, pp. 143–79. DOI: 10.1017/S0261444811000528