Lockett, David M.
Building your advertising business : a complete guide to boost your billings / David M. Lockett
NTC Business Books, 1989
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Rossiter, John R.
Advertising communications and promotion management
Irwin/McGraw-Hiil, 1996
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Quelch, John A.
Sales promotion management
Prentice-Hall, 1989
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Davidson, Jeff
The complete ideal's guide: change management
Prenada, 2010
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Dedy Budiman
Setiap orang sales harus punya sales script!
Gramedia Pustaka Utama, 2011
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