Peter Pierce, Rosemary Hunter, editor
Oxford Univeristy Press, 1987
Buku Referensi
edited by Patricia Waugh
Oxford University Press, 2006
Buku Teks
edited by Patricia Waugh
Oxford University Press, 2006
Buku Teks SO
edited by Clement Semmler and Derek Whitelock
F.W. Cheshire, 1966
Buku Teks
Baldick, chris, author
Oxford University Press, 1990
Buku Referensi