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An Aspen Publication, 1983
Buku Teks
Arnold , 1996
Buku Teks
Humana Press, 1995
Buku Teks
edited Lewis E. Weeks, Howard J. Berman, Gerald E. Bisbee
Health Administration Press, 1979
Buku Teks
Aspen Systems Corporation, 1983
Buku Teks