edited by Norma M. Riccucci
Routledge, 2016
Buku Teks
Klingner, Donald E.
Prentice-Hall, 1980
Buku Teks
Jucius, Michael J.
Chicago, Ill Richard D. Irwin. Inc , 1949
Buku Teks
editors, Ronald J. Burke, Andrew J. Noblet, Cary L. Cooper
Edward Elgar, 2013
Buku Teks
Chruden, Herbert J.
South-Western Publishing Co., 1976
Buku Teks