Gupta, J. (1987). Mathematics For Business And Economics J.d Gupta; P.k Gupta And Man Mohan. McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGupta, J.D. Mathematics For Business And Economics J.d Gupta; P.k Gupta And Man Mohan. McGraw-Hill, 1987.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGupta, J.D. Mathematics For Business And Economics J.d Gupta; P.k Gupta And Man Mohan. McGraw-Hill, 1987.
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