Outline of the U.S. Economy
edited by Kathleen E. Hug
Office of International Infrmation Programs US Department of State, [Date of publication not identified]
 Buku Teks SO
Outline of the U.S. legal system
edited by George Clack
Bureau of International Information Programs United States Department of State, 2004
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Schroeder, Richard C.
An outline American government
International Communicational Agency, [date of publication not identified]
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An outline of American Government
edited by Nathan Glick
United Sates Information Agency, 1989
 Buku Teks SO
Witman, Shepherd Luther, 1906-
Visual outline of comparative government
Littlefield, Adams, 1963
 Buku Teks SO