Holsti, Ole R.
American leadership in World affairs Vietnam and the breakdown of consensus and
Boston Allen & Unwin 1984
 Buku Teks
New essays on the American/edited by Martha Banta
edited by Martha Banta
Cambridge Cambridge University Press 1987,
 Buku Teks
Becker, Carl Lotus, 1873-1945
Freedom and responsibility in the American way of life
Alfred . A. Knopf, 1945
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Equal opportunity/edited by Norman E. Bowie
Boulder Westview Press 1988,
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Griffith, Ernest S.
The America system of goverment
London Methuen & Co. 1967,
 Buku Teks