KOTLER, P. (2013). MARKETING MANAGEMENT (14TH ED.). PEARSON EDUCATION.
Dyfyniad Arddull ChicagoKOTLER, PHILIP. MARKETING MANAGEMENT. 14TH ED. DELHI: PEARSON EDUCATION, 2013.
Dyfyniad MLAKOTLER, PHILIP. MARKETING MANAGEMENT. 14TH ED. PEARSON EDUCATION, 2013.
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