Public administration and democracy : essays in honor of Paul H. Appleby
edited by Roscoe C. Martin
Syracuse University Press , 1965
 Buku Teks
Linden, Russell Mathew
Seamless government : a practical guide to re-engineering in the public sector
Jossey-Bass Publishers, 1994
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Points of view : readings in American government and politics
Robert E. Diclerico, Allan S. Hammock, editor
McGraw-Hill, 2009
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Griffith, Ernest
The American System of Government / Ernest S. Griffith
Frederick A. Praeger, 1954
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Ferguson, John H.
The American system of government
McGraw-Hill, 1947
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