Sydanmaanlakka, Pentti
Capstone Publishing Limited (a Wiley company), 2002
Buku Teks
Barksdale, Susan
[American Society for Training & Development Press, American Society for Training & Development Press], 2002
eBooks
Saloner, Garth
John Wiley & Sons, 2001
Buku Teks
Hunger, J. David, 1941-
Addison-Wesley, 1996
Buku Teks
Dess, Gregory G.
McGraw-Hill, 1993
Buku Teks