Mountford, Benjamin, author
Oxford University Press, 2016
eBooks
edited by Patricia Grimshaw, Chris McConville and Ellen McEwen
George Allen and Unwin, 1985
Buku Teks
Finn, Paul, author
Oxford University Press, 1987
Buku Referensi
Hudson, W.J., author
Sydney University Press, 1970
Buku Teks
Crowley, F.K. (Francis Keble), 1924-2013, author
Nelson, 1980
Buku Teks