Reynolds, Kimberley
Harvester Wheatsheaf, 1990
Buku Teks
Nash, Walter, author
Routledge, 1990
Buku Teks
Hewit, Douglas, author
Longman , 1988
Buku Teks
edited by Theo D`Haen and Hans Bertens
Rodopi, 1993
Buku Teks
edited by Nick Bentley
Routledge, 2005
Buku Teks