Deaux, Kay
Brooks/Cole, 1983
Buku Teks
DeLamater, John D., author
Colorado Westview Press, 2014
Buku Teks
Taylor, Shelley E., author
Prentice-Hall, 1997
Buku Teks
Baron, Robert A., author
Allyn and Bacon , 1997
Buku Teks
Myers, David G., author
McGraw-Hill, 2005
Buku Teks