Sawer, Geoffrey, 1910-1996
Melbourne University Press, 1973
Buku Teks SO
Forum Series, 1982
Buku Teks
edited by Don Anderson
Penguin Books, 1986
Buku Teks SO
edited by Geoffrey Dutton
Collins, 1966
Buku Teks SO
Itule, Bruce D.
McGraw-Hill, 1994
Buku Teks