edited by Jeremy Moon and Campbell Sharman
Cambridge University Press, 2003
Buku Teks
Mayer, David Y.
Dellasta, 1988
Buku Teks
Maddox, Graham
Penguin Books , 1989
Buku Teks
University of Queensland Press , 1975
Buku Teks
Aitkin, Don, author
Australian National University Press, 1978
Buku Teks