Tait, Viola
Heinemann, 1970
Buku Teks
Fitzgerald, Ross
University of Queensland Press, 1984
Buku Teks
Trevelyan, George Macaulay, 1876-1962, author
Longmans, Green, 1950
Buku Teks
Piggin, Stuart
The University of Wollongong, 1984
Buku Teks
Piggott, Stuart
Thames and Hudson, 1992
Buku Teks