Lloyd, Margaret, author
Churchill Livingstone, 2009
Buku Teks
Sully, Philippa, author
Elsevier, 2005
Buku Teks
McIntosh, Perry, author
[American Management Association;, ], 2008
eBooks
Chan, Janis Fisher, author
[American Management Association;, ], 2002
eBooks
Rutherfoord, Andrea J., author
Prentice-Hall, 2001
Buku Teks