Harvester Wheatsheaf, 1993
Buku Teks
edited by Edwin J. Thomas
Free Press, 1967
Buku Teks
Aron, Arthur
Prentice-Hall, 1997
Buku Teks
editor, Walter Fernandes, Rajesh Tandon; pengantar, Mochtar Buchori
Gramedia Pustaka Utama, 1993
Buku Teks
by Harvey A. Horstein [and others]
Free Press a Division of Macmillan, 1971
Buku Teks