Knapp, Mark L.
Allyn and Bacon, 1996
Buku Teks
DuBrin, Andrew J.
Pearson education International, 2009
Buku Teks
Warren G. Bennis; Edgar H. Schei; and David E. Berlew
The Dorsey Press, 1964
Buku Teks
Johnson, David W., 1940-
Prentice-Hall, 1987
Buku Teks
Hogan, Rosemarie Mihelich
Appleton-Century Crofts, 1980
Buku Teks