Ardi Wirdamulia, author
Management, Faculty of Economics, University of Indonesia and Philip Kotler Center, 2013
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Schultz, Duane P., author
Cengage Learning, 2017
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Seta Wicaksana, author
Fakultas Psikologi Universitas Pancasila, 2017
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Hall, Calvin S. (Calvin Springer), 1909-1985, author
John Wiley & Sons, 1998
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Yustinus Semiun, author
Kanisius, 2013
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