Diwan, P., & Aggrawal, L. (1997). Business communication. Excel books.
Čikaški stil citiranjaDiwan, Parag, i L.N Aggrawal. Business Communication. New Delhi: Excel books, 1997.
MLA način citiranjaDiwan, Parag, i L.N Aggrawal. Business Communication. Excel books, 1997.
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