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Scott Foresman , 1981
Buku Teks
Strongman, Kenneth T.
John Wiley & Sons, 2003
Buku Teks
Margaret H. DeFleur, Patricia Kearney, Timothy G. Plax, Melvin L. DeFleur
McGraw-Hill, 2014
Buku Teks
Freud, Sigmund, 1856-1939
Pedati , 2005
Buku Teks
Bennett, Jeffrey O.
Pearson - Addison Wesley, 2009
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