Kotler, . P. T., & Armstrong, G. (2018). Principles of marketing (17th ed.). New York, NY: Pearson.
Trích dẫn kiểu ChicagoKotler, Philip T., và Gary Armstrong. Principles of Marketing. 17th ed. New York, NY: Pearson, 2018.
Deismireacht MLAKotler, Philip T., và Gary Armstrong. Principles of Marketing. 17th ed. New York, NY: Pearson, 2018.
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