Kendall, Willmoore
The basic symbols of the American political tradition
Louisiana University Press, 1970
 Buku Teks
Plano, Jack C.
The American political dictionary
Holt, Rinehart and Winston, 1985
 Buku Referensi
Cummings, Milton C.
Democracy under pressure: an introduction to the American political system / Milton C. Cummings, David Wise
Harcourt Brace Jovanovich, 1981
 Buku Teks
Cummings, Milton C.
Democracy under pressure: an introduction to the American political system/Milton C. Cummings, David Wise
Harcourt Brace Jovanovich, 1977
 Buku Teks
Sayre, Wallace S.
American government
Barnes & Noble, 1964
 Buku Teks