Lieberman, Michael, author
Wolters Kluwer, 2009
Buku Teks
Beland, Irene L., author
Macmillan, 1981
Buku Teks
[edited] by Stephen B. Hulley, Steven R. Cummings with major contributions by Warren S. Browner, Thomas B. Newman, Norman Hearst
Williams and Wilkins, 1988
Buku Teks
edited by Eugene C. Nelson, Paul B. Batalden, Marjorie M. Godfrey
Jossey-Bass, 2007
Buku Teks
Bodenheimer, Thomas S., author
Appleton & Lange, 1995
Buku Teks