Greenwood Press, 2002
Buku Referensi
Johnson, Peggy
[American Management Association, ], 2009
eBooks
Johnson, Peggy, author
American Library Association, 2014
Buku Teks
Disher, Wayne, author
Libraries Unlimited, 2007
Buku Teks
Jorgensen, Finn, author
The McGraw-Hill Companies, 1996
Buku Referensi