Ball, David, author
Facet Publishing, 2005
Buku Teks
McSean, Tony, author
Library Association Publishing, 1992
Buku Referensi
Brophy, Peter, author
Facet, 2002
Buku Teks
Brophy, Peter, author
Facet, 2005
Buku Teks
edited by Maurice B. Line
Library Association, 1990
Buku Teks