Odom, William E.
Americas inadvertment empire
Yale University Press, 2004
 Buku Teks
State of the Union 1994 : the Clinton administration and the nation in profile / edited, Richard Caplan
Westview Press, 1994
 Buku Teks
Building the bridge : 10 big ideas to transform America
edited by William Marshall, Chuck Alston and Tom Mirga
Rowman & Littlefield, 1997
 Buku Teks
Points of view : readings in American government and politics
Robert E. Diclerico, Allan S. Hammock, editor
McGraw-Hill, 2009
 Buku Teks
Griffith, Ernest
The American System of Government / Ernest S. Griffith
Frederick A. Praeger, 1954
 Buku Teks