MURPHY J.A. (2006). CONVERTING CUSTOMER VALUE FROM RETENTION TO PROFIT. JOHN WILEY & SONS.
Lua i Stíl Chicago (17ú heag.)MURPHY J.A. CONVERTING CUSTOMER VALUE FROM RETENTION TO PROFIT. ENGLAND: JOHN WILEY & SONS, 2006.
Lua MLA (9ú heag.)MURPHY J.A. CONVERTING CUSTOMER VALUE FROM RETENTION TO PROFIT. JOHN WILEY & SONS, 2006.
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