Rai,Alok Kumar. (2008). Customer Relationship Management: Concepts and Cases. PHI.
Παραπομπή Chicago StyleRai,Alok Kumar. Customer Relationship Management: Concepts and Cases. New Delhi: PHI, 2008.
Παραπομπή MLARai,Alok Kumar. Customer Relationship Management: Concepts and Cases. PHI, 2008.
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