Jensen, Doug, author
American Management Association, 2007
eBooks
Brown, Paul B., author
[American Management Association, ], 2004
eBooks
Rosen, Lawrence R., author
Dow Jones-Irwin, 1974
Buku Referensi
See, Lisa, author
Blanvalet, 2007
Buku Teks
Salmiah Alias, author
Ameen Kreatif, 2011
Buku Teks