Elengolds, Linda J., author
[American Society for Training & Development Press, American Society for Training & Development Press], 2001
eBooks
King, Paul H., author
CRC Press, Taylor & Francis Group, 2009
Buku Teks
By R.D. Coyne, M.A. Rosenman, A.D. Radford, M. Balachandran, and J.S. Gero
Addison-Wesley, 1990
Buku Teks
Beam, Walter R., author
McGraw-Hill, 1990
Buku Teks
Stoecker, Wilbert F. (Wilbert Frederick), author
McGraw-Hill , 1989
Buku Teks