Zeithaml Valarie A. & Bitner Mary Jo. (2005). Services Marketing, Integrating Customer Focus Across the Firm (3rd.). Tata Mc Graw Hill Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZeithaml Valarie A. और Bitner Mary Jo. Services Marketing, Integrating Customer Focus Across the Firm. 3rd. New Delhi: Tata Mc Graw Hill Publishing, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रZeithaml Valarie A. और Bitner Mary Jo. Services Marketing, Integrating Customer Focus Across the Firm. 3rd. Tata Mc Graw Hill Publishing, 2005.
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