Bradley, Phil, author
Library Association, 2002
Buku Teks
Bradley, Phil, author
Lawrence Erlbaum Associates, 1999
Buku Teks
Bradley, Phil, author
Facet Publishing, 2004
Buku Teks
Bradley, Phil, author
Library Association Publishing, 1999
Buku Referensi
Shelly, Gary B., author
Course Technology Cengage Learning, 2012
Buku Teks