Public opinion and Congressional elections / edited by William N. McPhee & William A. Glaser.
Greenwood Press, 1981
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Fox, Harrison W.
Congressional staffs : the invisible force in American lawmaking / Harrison W. Fox
The Free Press, 1977
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Barone, Michael
The almanac of American politics 1990
National Journal, 1992
Buku Referensi
Barone, Michael
The Almanac of American politics 1990
National Journal, 1990
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Harris, Joseph P.
Congressional control of administration / by Joseph P. Harris
The Brookings Institution, 1964
Buku Teks