Laski, Harold J.
Liberty in the modern state
George Allen and Unwin, 1948
 Buku Teks
Handlin, Oscar
The dimensions of liberty
Atheneum, 1966
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Mill, John Stuart
On liberty and utilitarianism
David Campbell Publisher, 1992
 Buku Referensi
Lindsay, A.D.
The modern democratic state
Oxford University Press, 1959
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Liberty in Australia : Australian institute of political science / edited, John Wilkes
Angus & Robertson , 1955
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