Callahan, Evan
Microsoft Press, 1999
Multimedia
MBR Consulting, Inc.
Prentice Hall of India, 1997
Buku Teks SO
Callahan, Evan
Microsoft Press, 1999
Buku Referensi
Cohen, Sacha
[American Society for Training & Development Press, American Society for Training & Development Press], 2001
eBooks
Becker, Hal B.
John Wiley & Sons, 1973
Buku Teks SO