Schneider, Susan C., author
Prentice-Hall, 1997
Buku Teks
Harvard Business Review Press, 2016
Buku Teks
Jackson, Susan E., author
South Westh Western College, 2000
Buku Teks
Greenlaw, Paul S., author
Harper & Row, 1986
Buku Teks
Harvard Business School Press, 1999
Buku Teks