Khalid, R. U. (2018). (Sustainable) supply chain management at the base of the pyramid. Kassel University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKhalid, Raja Usman. (Sustainable) Supply Chain Management at the Base of the Pyramid. Kassel, Germany: Kassel University Press, 2018.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKhalid, Raja Usman. (Sustainable) Supply Chain Management at the Base of the Pyramid. Kassel University Press, 2018.
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