Makkar, U. (2012). Customer relationship management. Tata McGraw Hill Education.
शिकागो स्टाइल उद्धरणMakkar, Urvashi. Customer Relationship Management. New Delhi: Tata McGraw Hill Education, 2012.
एमएलए उद्धरणMakkar, Urvashi. Customer Relationship Management. Tata McGraw Hill Education, 2012.
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