Sindell, Milo
[American Society for Training & Development Press, American Society for Training & Development Press], 2001
eBooks
Chapman, Robert L.
John Wiley & Sons, 2011
Buku Teks
edited by Claudia Peus, Susanne Braun, Birgit Schyns
Emerald, 2016
eBooks
Vardaman, George T.
Auerbach Publishers, 1973
Buku Teks
Harrington, Scott E.
McGraw-Hill, 2004
Buku Teks