Califano, Joseph A.
A Presidential nation / Joseph A. Califano, Jr
W.W.Norton and Company, 1931
 Buku Teks
Neustadt, Richard E., author
Presidential power and the modern presidents : the politics of leadership from Roosevelt to Reagan
The Free Press, 1990
 Buku Teks
Asher, Herbert B., author
Presidential elections and American politics: voters, candidates, and campaigns since 1952
The Dorsey Press, 1980
 Buku Teks
Asher, Herbert B., author
Presidential elections and American politics: voters, candidates, and campaigns since 1952 / Herbert B. Asher
The Dorsey Press, 1984
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Politics and the Oval Office: towards presidential governance
edited by Arnold J. Meltsner
Institute for Contemporary Studies, 1981
 Buku Teks
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