Cohen, Sacha
[American Society for Training & Development Press, American Society for Training & Development Press], 2001
eBooks
Kent, Peter
Prentice Hall of India, 1996
Buku Teks SO
Callahan, Evan
Microsoft Press, 1999
Buku Referensi
O`Hara, Shelley
Que , 2002
Buku Teks
Grimes, Galen A.
QUE, 1996
Buku Teks SO