Kotler, P. (1991). Marketing management: Analysis, planning, implementation, and control (7th ed.). Prentice-Hall.
Chicago Style aipamenaKotler, Philip. Marketing Management: Analysis, Planning, Implementation, and Control. 7th ed. Englewood, Cliffs, NJ: Prentice-Hall, 1991.
MLA aipamenaKotler, Philip. Marketing Management: Analysis, Planning, Implementation, and Control. 7th ed. Prentice-Hall, 1991.
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