Keller, K. L., & KOTLER, P. (2016). Marketing management 15th ed. Pearson.
Lua i Stíl Chicago (17ú heag.)Keller, Kevin Lane, agus Philip KOTLER. Marketing Management 15th Ed. Pearson, 2016.
Lua MLA (8ú heag.)Keller, Kevin Lane, agus Philip KOTLER. Marketing Management 15th Ed. Pearson, 2016.
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