McAuley, James, author
Oxford University, 1963-1973
Buku Teks
Brennan, Christopher, author
Angus & Robertson, 1966
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
Artikel Jurnal