Kotler, P. (1991). Marketing management: Analysis, planning, implementation, and control (7th ed.). Prentice-Hall International.
Cita Chicago Style (17a ed.)Kotler, Philip. Marketing Management: Analysis, Planning, Implementation, and Control. 7th ed. Englewood Cliffs, New Jersey: Prentice-Hall International, 1991.
Cita MLA (9a ed.)Kotler, Philip. Marketing Management: Analysis, Planning, Implementation, and Control. 7th ed. Prentice-Hall International, 1991.
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