GUPTA N S. (2003). BUSINESS POLICY AND STRATEGIC MANAGEMENT. HIMALAYA PUBLISHING HOUSE.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGUPTA N S. BUSINESS POLICY AND STRATEGIC MANAGEMENT. MUMBAI: HIMALAYA PUBLISHING HOUSE, 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGUPTA N S. BUSINESS POLICY AND STRATEGIC MANAGEMENT. HIMALAYA PUBLISHING HOUSE, 2003.
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