1. Disclaimers of performance;Bauman,1993
2. Verbal Art as Performance: With Supplementary Essays;Bauman,1984
3. Longman grammar of spoken and written English;Biber,1999
4. Pragmatic Markers in English;Brinton,1996
5. Givenness, contrastiveness, deniteness, subjects, topics, and point of view;Chafe,1976