Roy, R. N. (2005). A Modern Approach to Operations Management. New Age International.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoy, Ram Naresh. A Modern Approach to Operations Management. New Delhi: New Age International, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRoy, Ram Naresh. A Modern Approach to Operations Management. New Age International, 2005.
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