KOTLER PHILIP. (2008). PRINCIPLES OF MARKETING 12TH ED (12TH ED.). PEARSON PRENTICE HALL.
Chicago-viite (17. p.)KOTLER PHILIP. PRINCIPLES OF MARKETING 12TH ED. 12TH ED. INDIA: PEARSON PRENTICE HALL, 2008.
MLA-viite (9. p.)KOTLER PHILIP. PRINCIPLES OF MARKETING 12TH ED. 12TH ED. PEARSON PRENTICE HALL, 2008.
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