Trattner, Walter I.
From poor law to welfare state : a history of social welfare in american
Free Press, 1984
 Buku Teks
Trattner, Walter I.
From poor law to welfare state : a history of social welfare in american
Free Press, 1979
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Decentralizing the civil service : from unitary state to differentiated polity in the United Kingdom
R. A. W. Rhodes [and others]
Open University press, 2003
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Franklin, John Hope
From slavery to freedom: a history of American negroes
Alfred A.Knopf, 1961
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Catton, Bruce
The American heritage reader : selections from the magazine of history
Dell Publishing, 1956
 Buku Teks