edited by Peter France and Kenneth Haynes
Oxford University Press, 2006
Buku Referensi
edited by Stuart Gillespie and David Hopkins
Oxford University Press, 2005
Buku Referensi
Gillespie, Stuart, author
Wiley, 2011
Buku Teks
Oxford University Press, 1991
Buku Referensi
Peter Pierce, Rosemary Hunter, editor
Oxford Univeristy Press, 1987
Buku Referensi