Constable, Nicole
University California press, 2003
Buku Teks
Walkup, Renee P., author
American Management Association, 2006
eBooks
William, Miller, author
American Management Association, 2005
eBooks
Mathieson, Rick, author
American Management Association, 2005
eBooks
Christensen, Mary, 1951- , author
American Management Association, 2008
eBooks