Dentreves, A.P.
Natural law : an introduction to legal philosophy
Hutchinson`s University Library, 1951
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Cohan, Morris R.
Law and the social order essays in legal philosophy
Transactio Books, 1982
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Wolf, Hans Julius
Roman law an historical introduction
University of Oklahoma Press, 1978
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Pound, Roscoe
An Introduction to the philosophy of law
Yale University Press, 1950
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Pound, Roscoe
An Introduction to the philosophy of law
Yale University Press, 1954
 Buku Teks