DOCTOR, A. (1994). PRINC.AND PRACT. OF BUSINESS COMMUNICATION. SHETH PUB.
Chicago Style (17. basım) AtıfDOCTOR, A. PRINC.AND PRACT. OF BUSINESS COMMUNICATION. MUMBAI: SHETH PUB, 1994.
MLA (9th ed.) AtıfDOCTOR, A. PRINC.AND PRACT. OF BUSINESS COMMUNICATION. SHETH PUB, 1994.
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