Stiebing, William H.
Oxford University Press, 1993
Buku Teks
Hodder, Ian, author
International Thomson, 1995
Buku Teks
Daniel, Glyn, author
Middlesex: Penguin Books, 1967
Buku Teks
edited by Yvonne Marshall
Routledge, 1997
Buku Teks
Palmer, Marilyn, author
Routledge, 1998
Buku Teks