edited by Paul Boreham, Geoffrey Stokes and Richard Hall
Pearson-Longman, 2004
Buku Teks
Edward Arnold, 1978
Buku Teks
Theophanous, Andrew C.
Oxford University Press, 1980
Buku Teks
Epstein, T. Scarlett, author
Australian National University Press, 1968
Buku Teks
Brennan, Niall, 1918-2005, author
Hill Publishing, 1972
Buku Teks