1HaUiday, M.A.K. An Introduction to Functional Grammar [M]. Beijing: Beijing Foreign Language Teaching and Research, 2000.
2HaUiday, M.A.K. Language as Social Semiotic: The Social Interpretation of Language and Meaning [M]. Beijing: Beijing Foreign Language Teaching and Research, 2001.
3Thompson, G. Introducing Functional Grammar [M]. Beijing: Beijing Foreign Language Teaching and Research, 2000.
