Wade, Terence
New York : Oxford University Press, 2002
Buku Referensi
London, Oxford University Press
Buku Referensi
edited by Angela Partington
Oxford University Press, 1993
Buku Referensi
Oxford University Press, 1996
Buku Referensi
edited by Sally Wehmeier
Oxford University Press, 1993
Buku Referensi