Weitere Bibliographie
1. Dörnyei, Z. (2007). Research methods in applied linguistics: Quantitative, qualitative, and mixed methodologies. Oxford, UK: Oxford University Press.
2. Heigham, J. & R.A. Croker (2009). Qualitative research in applied linguistics: A practical introduction. Hampshire, UK: Palgrave Macmillan.
3. King, K. A., Lai, Y.-J., & May, S. (2017). Research Methods in Language and Education. Cham : Springer International Publishing. (e-book)
4. Mackey, A., & Gass, S. (2012). Research methods in second language acquisition a practical guide. Chichester, West Sussex, U.K. ; Malden, MA : Wiley-Blackwell. (e-book).