Hurt, Robert L.
McGraw - Hill - Irwin, 2008
Buku Teks
Schmitz, Homer H.
Aspen systems corporation, 1979
Buku Teks
Rahman, Mawdudur
Prentice-Hall, 1998
Buku Teks
Glandon, Gerald L., author
Health Administration Press, 2014
Buku Teks
Veith, Richard H., author
G.K. Hall, 1988
Buku Teks