Biber, Douglas, Johansson, Stig, Leech, Geoffrey, Conrad, Susan, Finegan, Edward. Longman Grammar of Spoken and Written English. Harlow: Pearson Education Limited, 1999.
Conrad, Susan, Biber, Douglas. ‘Adverbial marking of stance in speech and writing.’ In: Hunston, Susan, Thompson, Geoff (eds). Evaluation in Text. Oxford: Oxford University
Press, 1999. 56-73.
Halliday, Michael A. K. An Introduction to Functional Grammar. London: Edward Arnold, 1985.
Halliday, Michael A. K., Hasan, Ruqaiya. Language, Context and Text: Aspects of Language in a Social-semiotic Perspective. Oxford: Oxford University Press, 2nd ed, 1989.
Halliday, Michael A. K. Language as Social Semiotic. The social Interpretation of Language and Meaning. London: Edward Arnold, 1978.
Huddleston, Rondey, Pullum, Geoffrey K. The Cambridge Grammar of the English Language. Cambridge: Cambridge University Press, 2002.
Hyland, Ken. ‘Writing Without Conviction. Hedging in Science Research Articles.’ Applied Linguistics 17, 1996. 56-75.
Hyland, Ken. Disciplinary discourses. Michigan: University of Michigan, 2004.
Hyland, Ken. Metadiscourse. London & New York: Continuum, 2005.
Martin, James R. ‘Beyond exchange: Appraisal systems in English.’ In: Hunston, Susan, Thompson, Geoff (eds) Evaluation in Text. Oxford: Oxford University Press, 2000. 142-175.
Quirk, Randolph, Greenbaum, Sidney, Leech, Goeffrrey, Svartvik, Jan. A Comprehensive Grammar of the English Language. London: Longman, 1985.
Swales, John M. Genre Analysis. Cambridge : Cambridge University Press, 1990.
Thompson, Geoff, Zhou, Jianglin. ‘Evaluation in text: The structuring role of evaluative disjuncts.’ In: Hunston, Susan, Thompson, Geoff (eds). Evaluation in Text. Oxford:
Oxford University Press, 2000. 121-141.