1Rogers Everett M. Diffusion of innovations[ M ]. New York: The Free Press, 2003.
2Sheth Jagdish N. Word - of - mouth in low risk innovations [ J ]. Journal of Advertising Research, 1971, ( 11 ).
3Bone Paula Fitzgerald. Determinants of word - of - mouth communi- cations during product consumption[ J]. Advances in Consumer Re- search, 1992, (19).
3A.S. Hornby,E.V. Gatenby,H. Wakefield .The Advanced Learner's Dictionary of Current English with Chinese Translation[Z].14th edition. Hong Kong: Oxford University Press, 1982:740.
4Rosen E. The Anatomy of Buzz: How to Create Word-of-mouth Marketing[M].New York: Doubleday Currency, 2000,1-12.
5Arndt Johan. Role of Product-related Conversations in the Diffusion of a New Product [J]. Journal of Marketing Research, 1967,4 (3) : 291-295 .