revised and update by Sandy Norman
Library Association Publishing, 1999
Buku Teks
Campion, H.
Oxford University Press, 1939
Buku Teks
Bloxam, GA
Gower Press, 1972
Buku Teks
Holden, J. Milnes, author
ELBS, 1993
Buku Teks
Supperstone, Michael, author
Longman, 1994
Buku Teks