Stewart, Rosemary
Choices for the manager
Prentice-Hall, 1982
 Buku Teks
Drucker, Peter Ferdinand, 1909-2005
Managing for results : economic tasks and risk-taking decisions
Harper & Row, 1964
 Buku Teks
Blake, Robert R.
Group dynamics, key to decision making
Texas Gulf, 1961
 Buku Teks
Drucker, Peter Ferdinand, 1909-2005
Managing for results
Pan Books, 1970
 Buku Teks
Stewart, Rosemary
Choices for the manager
Prentice-Hall, 1982
 Buku Teks