Moran, Lord
The Anatomy of courage
Houghton Mifflin, 1967
 Buku Teks
Kennedy, John F. (John Fitzgerald), 1917-1963
Profiles in courage
Harper & Row, 1955
 Buku Teks
Terraine, John
A Time for courage / John Terraine
Macmillan, 1985
 Buku Teks
Tillich, Paul
The courage to be / Paul Tillich
Nisbet, 1952
 Buku Teks
Terry, Robert W.
Authentic leadership : courage in action
Jossey-Bass Publishers, 1994
 Buku Teks