Benson, P. 2001. Teaching and Researching. Autonomy in Language Learning. Harlow: Pearson Education.
Campbell, L. 1998. Historical Linguistics. An Introduction. Edinburgh: Edinburgh University Press.
European Ministers of Education 1999. The Bologna declaration. [Internet document available at www.bologna-bergen2005.no/Docs/00-Main_doc/990719BOLOGNA_...
European Ministers Responsible for Higher Education. 2003. Realising the European Higher Education Area. [Internet document available at http://www.bolognaberlin2003.de/pdf/Communique1.pdf...
Hanewald, R. 2009. “Learning objects: Projects, potentials, and pitfalls”. Handbook of Research on E-learning Methodologies for Language Acquisition....
Hannay, M., M. Vliegen and T. Greidanus. 2005. Van woorden weten. Bussum: Coutinho.
Harley, H. 2006. English Words. A Linguistic Introduction. Oxford: Blackwell Publishing.
Harper, D. 2001. Online Etymology Dictionary. [Internet document available at www.etymonline.com].
Mills, G. E. 2003. Action Research: A Guide for the Teacher Researcher. Upper Saddle River, NJ: Merrill/Prentice Hall.
Motteram, G. 1997. “Learner autonomy and the web”. Educational Technology in Language Learning: Theoretical Considerations and Practical Applications...
Sihler, A. L. 2000. Language History. An Introduction. Amsterdam/Philadelphia: John Benjamins.
Simpson J. A. and E. S. C. Weiner, eds. 1989. The Oxford English dictionary. (2nd edition). [Internet document available at http://dictionary.oed.com].
Singleton, D. 2000. Language and the Lexicon. An Introduction. London: Arnold.
Summers, D. et al. eds. 2005. Longman Dictionary of Contemporary English. [Internet document available at http://www.longman.com/dictionaries/webdictionary.html].
Vaughan, N. 2007. “Perspectives on blended learning in higher education”. International Journal on E-learning 6 (1): 81-94.
Walter, E. et al. eds. 2008. Cambridge Advanced Learner’s Dictionary. [Internet document available at http://dictionary.cambridge.org].