Mendis, Ravi, author
Sams, 2002
Buku Teks
Tomaiuolo, Nicholas G., author
Information Today, 2004
Buku Teks
Horton, Sarah, author
Yale University Press, 2000
Buku Teks
by Dennis Nicholson [and others]
The British library , 1995
Buku Teks
editor, Dominik Kuroka; Steffen Staab; Mathias Weske
Springer, 2008
Buku Teks