Halliday, M. A. K. (1978) Language as a Social Semiotic. London: Arnold.
Matheson, D (2005) Media Discourses: Analysing Media Texts. Maidenhead: Open University Press.
Stubbs, M. (1996) Text and Corpus Analysis. Oxford: Blackwell Publishers.
Woodward, K. (1991) Aging and Its Discontents. Bloomington, IN: Indiana University Press.