Derlega, Valerian J.
Scott Foresman , 1981
Buku Teks
Strongman, Kenneth T.
John Wiley & Sons, 2003
Buku Teks SO
Margaret H. DeFleur, Patricia Kearney, Timothy G. Plax, Melvin L. DeFleur
McGraw-Hill, 2014
Buku Teks
Freud, Sigmund, 1856-1939
Pedati , 2005
Buku Teks
Baldwin, John D., 1941-
Prentice-Hall, 1986
Buku Teks