Grolier Society of Australia, 1983
Buku Referensi
Oxford University Press, 1938
Buku Teks
Brinton, Crane, 1898-1968, author
Prentice-Hall, 1955
Buku Teks
Crowley, F.K. (Francis Keble), 1924-2013, author
Wren Publishing, 1973
Buku Teks
Murray, David, author
Routledge/Thoemmes Press, 1996
Buku Referensi