Tumin, Melvin M., author
Little, Brown, 1973
Buku Teks
edited by Amitai Etzioni and Eva Etzi
Basic Books, 1964
Buku Teks
Cambridge University Press, 2010
eBooks
Allen L. Hammond [and others]
Oxford University Press , 1996
Buku Teks
Henslin, James M., author
Erlangga, 2007
Buku Teks