Leach, Richard H., author
American federalism
W.W. Norton, 1970
 Buku Teks
Sayre, Wallace S., author
American government
Barnes & Noble, 1964
 Buku Teks
Posey, Rollin Bennett, author
American government
Littlefield, Adam, 1958
 Buku Teks
Vance, Stanley C., author
American industries
Prentice-Hall, 1955
 Buku Teks
Carnevale, Anthony P.
Quality education: school reform for the new American economy: executive summary / Anthony P. Carnevale and Jeffrey D. Porro
Dept. of Education, Office Educational Research and Improvement , 1994
 Buku Teks
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