Tulloch, Mitch, author
Currency Press, 1986
Buku Teks
Graham, Bruce Desmond, author
Australian National University Press, 1966
Buku Teks
Norden, Mary, author
Conran Octopus Limited, 2000
Buku Referensi
Waller, Robert James, author
Warner Books, 1992
Buku Teks
Idea Books, 1997
Buku Referensi