Peacocke, Christopher
clarendon Press, 2007
Buku Teks
Driver, Christopher
Hodder and Stoughton , 1971
Buku Teks
edited by A.R. Chisolm and J.J. Quinn
Angus and Roberson, 1962
Buku Teks
Clark, Axel, author
Melbourne University Press, 1980
Buku Teks
Morison, Samuel Eliot, author
Little, Brown, 1955
Buku Teks