Handford, M., Koester, A., Lisboa, M., & Pitt, A. (2012). Business Advantage: Upper-intermediate Student's book. Cambridge: Cambridge University Press.
शिकागो स्टाइल उद्धरणHandford, Michael., Almut Koester, Martin Lisboa, और Angela Pitt. Business Advantage: Upper-intermediate Student's Book. Cambridge: Cambridge University Press, 2012.
एमएलए उद्धरणHandford, Michael., Almut Koester, Martin Lisboa, और Angela Pitt. Business Advantage: Upper-intermediate Student's Book. Cambridge: Cambridge University Press, 2012.
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