APA

Kotler h., .Principles of Markiting. New Delhi: Prentice Hall of India.

Chicago

Kotler hilip, .Principles of Markiting. New Delhi: Prentice Hall of India.

Harvard

Kotler h., .Principles of Markiting. New Delhi: Prentice Hall of India.

MLA

Kotler hilip, .New Delhi: Prentice Hall of India. .