Kotler, John P.
Gramedia Pustaka Utama, 1997
Buku Teks
Kotter, John P., 1947-
Gramedia Pustaka Utama, 1997
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Lancaster, Jeanette
Mosby, 1999
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Lucas, Ann F.
Jossey-Bass Publishers , 2000
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Cummings, Thomas G., 1944-, author
CT Cengage Learning, 2015
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