Wortman, Camille B.
Psychology
McGraw-Hill, 1992
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Myers, David G.
Psychology
Worth, 1986
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Santrock, John W.
Psychology
Worth Publishers, 1998
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Santrock, John W.
Psychology
McGraw-Hill, 2005
Buku Teks
Munn, Norman L.
Psychology
Houghton-Mifflin, 1961
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