KOTLER PHILIP/ ARMSTRONG, . (2004). PRINCIPLES OF MARKETING. NEW DELHI: PRENTICE HALL OF INDIA.
KOTLER PHILIP/ ARMSTRONG, . 2004. PRINCIPLES OF MARKETING. NEW DELHI: PRENTICE HALL OF INDIA.
KOTLER PHILIP/ ARMSTRONG, . PRINCIPLES OF MARKETING. NEW DELHI: PRENTICE HALL OF INDIA. 2004.