T. Kanti Srikantaiah, Michael E.D. Koenig, editor
Information Today, 2000
Buku Teks
Atwood, Christee Gabour, author
American Society for Training & Development, 2009
eBooks
Schwartz, David G., author
Idea Group Reference, 2006
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Debowski, Shelda
John Wiley & Sons, 2006
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Newman, Amy, author
[American Society for Training & Development Press, American Society for Training & Development Press], 1999
eBooks