1Halliday, M.A.K. and Hazan. R(1976) Cohesion in English (London. Longman)
2Landow, G. P. (1994) "What' s a Critic to Do?Critical Theory in the Age of Hypertext", In Hyper/Text/Theory edited by G. P. Landow (Baltimore,London: The Johns Hopkins University Press)
3Nelson, T. H. ( 1993 [ 1981 ] ) : Literary Machines(California Mindful Press)
4Sperber, D. and Wilson, D. (1986) Relevance. Communication and Cognition (Oxford: Blackwell)
5van Dijk, T. A(1988) News as Discourse(Hillsdale, N. Lawrence Erlbaum Associates)