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Buku Teks
Surya Dharma, author
Pustaka Pelajar, 2005
Buku Teks
edited by David Rees, Richard McBain
Kencana Prenada Media Group, 2007
Buku Teks
Robbins, Stephen P., author
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Buku Teks
Hitt, Michael A., author
Pearson, 2009
Buku Teks