Routledge, 1995
Buku Teks
Nicoll, Allardyce, author
George G. Harrap, 1949
Buku Teks
Simpson, W.O., author
Stanley Thornes, 1986
Buku Teks
Couto, Maria, author
St. Martin's Press, 1988
Buku Teks
Usherwood, Bob, author
Library Association, 1993
Buku Teks