Oxford Univesity Press, 1994
Buku Referensi
Oxford : Oxford University Press, 1995,
Buku Referensi
edited by Grahame Johnston
Oxford University Press, 1980
Buku Referensi
edited by George W. Turner
Melbourne, Oxford University Press, 1987
Buku Referensi
Kirkpatrick, Betty
Oxford University Press, 1994
Buku Referensi