Chapman, R.J.K., author
George Allen and Unwin, 1984
Buku Teks
editors, Cameron Hazlehurst and J. R. Nethercote
National University Press, 1977
Buku Teks
University of Queensland, 1968
Buku Teks
Cosgrove, John J., author
Longman, 1988
Buku Teks
edited by Jeremy Moon and Campbell Sharman
Cambridge University Press, 2003
Buku Teks