edited Lewis E. Weeks, Howard J. Berman, Gerald E. Bisbee
Health Administration Press, 1979
Buku Teks
by Michael Cichon ... [and others]
International Labour Office, 1999
Buku Teks
Donaldson, Cam, author
Macmillan, 1994
Buku Teks
Cushman, Robert F., author
An Aspen Publication, 1983
Buku Teks
Aaron, Henry J., author
Brookings Institution, 1991
Buku Teks