BEECH, J. (2015). Doing your business research project. Sage Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBEECH, John. Doing Your Business Research Project. Sage Publishers, 2015.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBEECH, John. Doing Your Business Research Project. Sage Publishers, 2015.
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