1. Allwright, R. L. (1984). Why don’t learners learn what teachers teach? The interaction hypothesis. In D. M. Singleton & D. G. Little (Eds.), Language learning in formal and informal contexts (pp. 3–18). Dublin: IRAAL.
2. Altenberg, E. P., & Vago, R. M. (1983). Theoretical implications of an error analysis of second language phonology production. Language Learning, 33(4), 427–448. https://doi.org/10.1111/j.1467-1770.1983.tb00943.x
3. Beinhoff, B. (2013). Perceiving identity through accent: Attitudes towards non-native speakers and their accents in English. Oxford and Bern: Peter Lang.
4. Block, D. (2003). The social turn in second language acquisition. Edinburgh: Edinburgh University Press.
5. Bradac, J. J. (1990). Language attitudes and impression formation. In H. Giles & W. P. Robinson (Eds.), Handbook of language and social psychology (pp. 387–412). Chichester, UK: Wiley.