ASHWATHAPPA K. (1996). ESSENTIAL OF BUSINESS ENVIRONMENT (4TH.). HPH.
Chicago Style (17. basım) AtıfASHWATHAPPA K. ESSENTIAL OF BUSINESS ENVIRONMENT. 4TH. MUMBAI: HPH, 1996.
MLA (9th ed.) AtıfASHWATHAPPA K. ESSENTIAL OF BUSINESS ENVIRONMENT. 4TH. HPH, 1996.
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