edited by Janet Davidson, Robert J. Sternberg
Cambridge university , 2003
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Robertson, S. Ian, author
Psychology Press, 2001
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Fitri Ilmi Amalia, author
Fakultas Psikologi Universitas Indonesia, 2013
UI - Skripsi (Membership)
Eide, Arvid R., author
McGraw-Hill, 2002
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Fogler, H. Scott, author
Prentice-Hall, 2008
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