London Routledge 1997,
Buku Teks
Cornell University Press, 1965
Buku Klasik
edited by Warren J. Samuels, Jeff E. Biddle, John B. Davis
Blackwell, 2003
Buku Teks
Nicolas S. Witschi, editor
Wiley Balckwell, 2014
Buku Teks SO
Toynbee, Arnold J., author
Oxford University Press, 1957
Buku Teks