Allen, Frederick Lewis
Bantam Books, 1961
Buku Teks
Johnson, Chalmers, 1931-2010, author
Vakils, Feffer and Simons Private, 1966
Buku Teks
Moore, Wilbert E. (Wilbert Ellis), author
Prentice-Hall, 1963
Buku Teks
edited by Warren G. Bennis
Holt, Rinehart and winston, 1976
Buku Teks
Kotter, John P., 1947-, author
Harvard Business School Press, 2002
Buku Teks