Hughes, Colin A.
Australian National University Press, 1968
Buku Teks
edited by Henry Mayer
F.W. Chesire, 1966
Buku Teks
edited by Henry Mayer and Helen Nelson
Cheshire, 1973
Buku Teks
Aitkin, Donald Alexander
Australian National University Press, 1982
Buku Teks
edited by Paul Boreham, Geoffrey Stokes and Richard Hall
Pearson-Longman, 2004
Buku Teks