Leigh, Elyssebeth, author
The McGraw-Hill Companies Inc., 2001
Buku Teks
Leigh, Elyssebeth
McGraw-Hill, 2001
Multimedia
Thiagarajan, Sivasailam Thiagi, author
[American Society for Training & Development Press, American Society for Training & Development Press], 2001
eBooks
Wright, Andrew, 1937-, author
Cambridge University Press , 1994
Buku Teks
Kirk, James J., author
McGraww-Hill, 1997
Buku Teks