Campbell, Anthony
Sheldon, 1992
Buku Teks
Asherman, Ira G.
[American Management Association, ], 2012
eBooks
Viguerie, Patrick
Marshall Cavendish, 2010
Buku Teks
Markless, Sharon
Facet Publishing, 2006
Buku Teks
Redman, Barbara Klug
The MIT Press, cop, 2013
Buku Teks