Krech, David, author
McGraw-Hill, 1962
Buku Teks
DeLamater, John D., author
Colorado Westview Press, 2014
Buku Teks
Victoria University of Wellington, 2007
Buku Teks
Baron, Robert A., author
Pearson, 2009
Buku Teks
Franzoi, Stephen L., author
McGraw-Hill, Higher Education, 2009
Buku Teks