Theophanous, Andrew C.
Oxford University Press, 1980
Buku Teks
Brennan, Niall, 1918-2005, author
Hill Publishing, 1972
Buku Teks
Butler, David
National University, 1972
Buku Teks
edited by Jeremy Moon and Campbell Sharman
Cambridge University Press, 2003
Buku Teks
Hughes, Colin A.
Australian National University Press, 1968
Buku Teks