Joy Hakim
Freedom A History of US
Oxford University Press, 2003
 Buku Teks
Bury, J.B.
A history of freedom of thought
Oxford University Press, 1913
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Ritchie, Donald A.
Heritage of freedom history of the United States
Macmillan, 1985
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The bastille : a history of a symbol of depotism and freedom
edited by Keith Michael Baker, Steven Laurence Kaplan
Duke University Press, 1997
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Deutsch, Kenneth
An Invitation to political thught
Wadsworth and Cengage Learning, 2009
 Buku Teks