Lloyd Gutteridge. (2010). Business and Management for the IB Diploma: Study Guide (International Baccalaureate) (Study Guide.). Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLloyd Gutteridge. Business and Management for the IB Diploma: Study Guide (International Baccalaureate). Study Guide. Oxford University Press, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLloyd Gutteridge. Business and Management for the IB Diploma: Study Guide (International Baccalaureate). Study Guide. Oxford University Press, 2010.
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