4Brown, Jacqueline J. and P. H. Reingen.Social Ties and Word-of-Mouth Referral Behavior [J]. Journal of Consumer Research,1987,4(14) :350-362.
5Duhan, Dale F., Scott D. Johnson, James B. Wilcox, and Gilbert D. Harrell.Influences on Consumer Use of Word-of-Mouth Recommendation Sources [J].Journal of the Academy of Marketing Science, 1997,4(25) : 283-295.
6Christiansen,T.and Stephen S.Tax.Measuring Word of Mouth:the Questions of Who and When? [J]. Journal of Marketing Communication, 2000,(6) : 185-199.
7Hennig-Thurau et al.Electronic Word-of-Mouth via Consumer-Opinion Platforms:What Motivates Consumers to Articulate Themselves on the Internet[J].Journal of Interactive Marketing, 2004,1 (18) : 38-52.
