Lua APA (7ú heag.)

ASHWATHAPPA K. (1996). ESSENTIAL OF BUSINESS ENVIRONMENT (4TH.). HPH.

Lua i Stíl Chicago (17ú heag.)

ASHWATHAPPA K. ESSENTIAL OF BUSINESS ENVIRONMENT. 4TH. MUMBAI: HPH, 1996.

Lua MLA (9ú heag.)

ASHWATHAPPA K. ESSENTIAL OF BUSINESS ENVIRONMENT. 4TH. HPH, 1996.

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