Laski, Harold J.
Liberty in the modern state
Penguin Books, 1937
Buku Teks
Handlin, Oscar
The dimensions of liberty
Atheneum, 1966
Buku Teks
MacIver, Robert M.
The modern state
Oxford, 1926
Buku Teks
Mill, John Stuart
On liberty and utilitarianism
David Campbell Publisher, 1992
Buku Referensi
Lindsay, A.D.
The modern democratic state
Oxford University Press, 1959
Buku Teks