Doctor, R. (1983). Principles & practice of business communication (8th.). Sheth.
Chicago Style (17. basım) AtıfDoctor, Radaha. Principles & Practice of Business Communication. 8th. Bombay: Sheth, 1983.
MLA (9th ed.) AtıfDoctor, Radaha. Principles & Practice of Business Communication. 8th. Sheth, 1983.
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