KOTLER PHILIP. (2011). PRINCIPLES OF MARKETING (13TH.). PEARSON EDUCATION.
Chicago-viite (17. p.)KOTLER PHILIP. PRINCIPLES OF MARKETING. 13TH. NEW DELHI: PEARSON EDUCATION, 2011.
MLA-viite (9. p.)KOTLER PHILIP. PRINCIPLES OF MARKETING. 13TH. PEARSON EDUCATION, 2011.
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