Taylor, Jim, author
Amacom, 2011
Buku Teks
Jobber, David, author
Prentice-Hall, 2000
Buku Teks
Norris, James S., author
Prentice-Hall, 1982
Buku Teks
Johnson, Winslow, author
[American Management Association, ], 2004
eBooks
Taylor, Jim, author
American Management Association;, 2011
eBooks