GUPTA J D. (1987). MATHEMATICS FOR BUSINESS AND ECONOMICS. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGUPTA J D. MATHEMATICS FOR BUSINESS AND ECONOMICS. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1987.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGUPTA J D. MATHEMATICS FOR BUSINESS AND ECONOMICS. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1987.
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