Mahood, H.R.
Pressure groups in American politics
Scribner, 1967
Buku Teks SO
Huntington, Samuel P.
American politics
Belknap, 1981
Buku Teks
Boerner, Hermann
Representations of groups, with special consideration for the needs of modern physics
North-Holland, 1970
Buku Teks SO
Simpson, David
The politics of American English, 1776-1850i
Oxford University Press , 1986
Buku Teks SO
The politics of American government
Stephen J. Wayne [et all.]
Thomson, 2005
Buku Teks SO