khanna, r. (2015). Production and operations management (2nd ed.). phl learning private limited.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रkhanna, r.b. Production and Operations Management. 2nd ed. new delhi: phl learning private limited, 2015.
एमएलए (9वां संस्करण) प्रशस्ति पत्रkhanna, r.b. Production and Operations Management. 2nd ed. phl learning private limited, 2015.
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