Cleland, David I., author
John Wiley & Sons, 1996
Buku Teks
Zofi, Yael, author
Amacom, 2012
Buku Teks
Zofi, Yael, author
American Management Association, 2012
eBooks
Davenport, Thomas H., author
Publicis, 2006
Buku Teks
Hunger, J. David, 1941-, author
Addison-Wesley, 1996
Buku Teks