edited by Leonie Kramer
University of Queensland Press, 1988
Buku Teks
Swan, Michael
Longmans Green, 1969
Buku Teks
Tanner, Tony
Longman Group, 1979
Buku Teks
Tanner, Tony
Profile Books, 1981
Buku Teks
Petch, Simon
Sydney University Press, 1981
Buku Teks