edited Lewis E. Weeks, Howard J. Berman, Gerald E. Bisbee
Health Administration Press, 1979
Buku Teks
Boss, R. Wayne
Addison-Wesley, 1989
Buku Teks
Lyles, Richard I
John Wiley , 1986
Buku Teks
Jacobs, Philip
Aspen Publication, 1987
Buku Teks
Leslie Cromwell [and others]
Prentice-Hall, 1976
Buku Teks SO