Alok Kumar Rai. (2013). Customer Relationship Management: Concept and Cases (2nd.). PHI Learning Private Limited.
Chicago Style aipamenaAlok Kumar Rai. Customer Relationship Management: Concept and Cases. 2nd. Delhi: PHI Learning Private Limited, 2013.
MLA aipamenaAlok Kumar Rai. Customer Relationship Management: Concept and Cases. 2nd. PHI Learning Private Limited, 2013.
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