Finer, S. E.
Comparing constitutions
Clarendon Press Oxford, 1995
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Andrews, William G.
Constitutions and constitutionalism
D.van Nostrand Company,Inc., 1968
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Gibson, William M.
The Constitutions of Colombia
Duke University Press, 1948
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Wheare, K. C.
Modern constitutions
Oxford University Press, 1975
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Maddex, Robert L.
Constitutions of the world
London: Routledge, 1995,
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