Smith, Gina, author
[American Management Association, ], 2005
eBooks
Marshall, Edward M.
American Management Association, 1995
Buku Teks
Spitzer, Dean R., author
American Management Association, 2007
eBooks
Qualman, Erik, author
Wiley, 2009
Buku Teks
Baines, Francesca; Challoner, Jack; Macdonald, Fiona; Parker, Steve
Miles Kelly Publishing, 1999
Buku Referensi