Brian, William F., II
American Hospital Association, 1996
Buku Teks
E. Wainright Martin ... [and others]
Pearson, 2002
Buku Teks
Lucas, Henry C.
McGraw-Hill , 1997
Buku Teks
Harrington, Jon
Prentice-Hall, 1991
Buku Teks
Earl, Michael J.
Prentice-Hall, 1989
Buku Teks