Mortensen, Kurt W., author
Serambi Ilmu Semesta, 2011
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Danah Zohar, author
Mizan, 2005
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Danah Zohar, author
Mizan, 2002
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Cooper, Robert K., author
Gramedia Pustaka Utama, 1998
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Cooper, Robert K., author
Gramedia Pustaka Utama, 2000
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