Kotler, P., & Armstrong, G. (2008). Principles of marketing (12th ed.). Pearson/Prentice-Hall.
Chicago Style aipamenaKotler, Philip, and Gary Armstrong. Principles of Marketing. 12th ed. Singapore: Pearson/Prentice-Hall, 2008.
MLA aipamenaKotler, Philip, and Gary Armstrong. Principles of Marketing. 12th ed. Pearson/Prentice-Hall, 2008.
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