9Day G. S. A Two-Dimensional Concept of Brand Loyalty [ J ]. Journal of Advertising Research. 1969,3 (9) : 29 - 35.
10Dick A. S. & K. Basu. Customer Loyalty:Toward an Integrated Conceptual Framework [ J ]. Journal of the A- cademy of Marketing Science. 1994,2 (22) : 99 - 113.
