7Maley, Alan, 1986, XANADU-"A miracle rare device": the teaching of English in China, Culture Bond: Bridging the Cultural Gap in Language Teaching. Ed. Valdes, Joyce Merrill, Cambridge University Press.
8Lewis, Michael, 1986, The English verb: an exploration of structure and meaning. Language Teaching Publication.
9Perkins, Michael R, 1982, The Core Meanings of the English Modals, Journal of Linguistics. Vol. 18, No. 2.
10Sperber, Dan and Deirdre Wilson, 1986, Relevance: Communication and Cognition. Blackwel Publishers.