Zimbardo, Philip G., author
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Buku Teks
Ruch, Floyd L., author
Foresman, 1971
Buku Teks
Ruch, Floyd L., author
Scott, Foresman, 1958
Buku Teks
Feldman, Robert Stephen, 1947-, author
McGraw-Hill, 2013
Buku Teks
Miller, George A. (George Armitage), 1920-2012, author
Harper & Row , 1962
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