edited by Steven H. Chaffee
Sage, 1975
Buku Teks
edited by Harriet H. Werley, Joyce J. Fitzpatrick, Roma Lee Taunton
Springer, 1986
Buku Teks
edited by William Bridgwater dan Seymour Kurtz
Columbia University Press, 1963
Buku Referensi
Toynbee, Arnold J., author
Oxford University Press, 1956
Buku Teks
editor in chief, Seymour Martin Lipset
Routledge, 1995
Buku Referensi