Fitzgerald, Ross
University of Queensland Press, 1984
Buku Teks
Fitzgerald, Ross
University of Queensland Press, 1989
Buku Teks
Dickie, Phil
University of Queensland Press, 1998
Buku Teks
Longman Chesire, 1985
Buku Teks
Lunn, Hugh Duncan
University of Queendsland Press, 1978
Buku Teks