Mahood, H. R.
Pressure groups in American politics/ H. R. Mahood.
Scribner, 1967
Buku Teks
Heale, M. J.
The United States in the long twentieth century : politics and society since 1900
An imprint of Bloomsbury Publishing Plc, 2015
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Wuerthner, J.J.
The Businessman's guide to practical politics /by J. J. Wuerthner
Regnery, 1959
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Woll, Peter
Behind the scenes in American government: personalities and politics
Little, Brown & Co., 1979
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Irish, Marian D.
The Politics of American democracy
Prentice-Hall, 1962
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