Negi, J. (2005). Travel agency operations: Concepts and principles. Kaniskha Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNegi, Jagmohan. Travel Agency Operations: Concepts and Principles. New Delhi: Kaniskha Publishers, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNegi, Jagmohan. Travel Agency Operations: Concepts and Principles. Kaniskha Publishers, 2005.
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