Hildebrand, David K., 1940-, author
Duxbury Press, 1991
Buku Teks
Hildebrand, David K., 1940-, author
Duxbury Press, 1996
Buku Teks
Chapman and Hall/CRC, 2007
eBooks
Haines, Stephen G.
HRD Press, 1998
Buku Teks
Katcher, Bruce Leslie, author
American Management Association, 2007
eBooks