6Woodruf New Approaches Satisfaction. Inc.,1996. f R.B., Gardial. Know Your Customer: to Understanding Customer Value and Massachusetts: Blackwell Publishers.
7Ravald h., Gronroos C.. The Value Concept and Relationship Marketing. European Journal of Marketing, 1996,30(2):19-30.
8Woodruff Robert B. Customer Value: The Next Source for Competitive Advantage. Journal of the Academy of Marketing Science, 1997,25(2):139-153.
8Woodruff. Customer value:the next source for competia've advantage [J]. Journal of the Academy of Marketing Science, 1997,25/2:139-153.
9Zeithaml V. A. Consumerperceptions of price, quality and value: a mean-end model and synthesis of evidence [J]. Journal of Marketing, 1988, 52(3): 2-22.