Dubois, Bernard
Understanding the costumer: a European perspectiver
Prentice-Hall, 2000
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Gibson, A. B.
Thinkers at work
Longmans, 1947
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Malhotra, Naresh K.
Basic marketing research : a decision-making approach
2006
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Luki Indra Malik
Perencanaan Digital Marketing untuk Kedai Fast Food Wings It! = Digital Marketing Planning for Fast Food Shop Wings It!
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2019
 UI - Tugas Akhir
Competitive Intelligence and Decision Problems
Amos David
John Wiley, 2011
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