edited by Alfred M. Bork
Pergamon Press, 1980
Buku Teks
Information Science Pub., 2004
Buku Teks
edited by Andrew Ravenscroft
Springer, 2012
eBooks
editors, Saul Carliner, Patti Shank
Pfeiffer, 2008
Buku Referensi
Shackelford, Bill, author
[American Society For Training & Development;, ], 2002
eBooks