Oxford Univesity Press, 2008
Buku Referensi
Walker, David M.
Clarendon Press, 1980
Buku Referensi
edited by Margaret Drabble
Oxford University Press, 1998
Buku Referensi
edited by Margaret Drabble
Oxford University Press, 1985
Buku Referensi
Hart, James
Oxford University Press, 1965
Buku Referensi