McElroy, Mark W.
Butterworth-Heinemann, 2003
Buku Teks
T. Kanti Srikantaiah, Michael E.D. Koenig, editor
Information Today, 2000
Buku Teks
Harvard Business School Publishing Corporation, 2001
Buku Teks
Information Resources Management Association, editor.
IGI Global, 2012
Buku Referensi
Marquardt, Michael
American Society for Training and Development Press, 1999
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