Raz, Joseph
The authority of law : essays on law and morality
Oxford Univesity Press, 2009
 Buku Teks
Law, morality and society: essays in honour of H.L.A. Hart
edited by P.M.S. Hacker and J. Raz
Clarendon Press, 1988
 Buku Teks SO
Fuller, Lon L.
The morality of law
Yale University Press, 1964
 Buku Teks SO
Fuller, Lon L.
The morality of law
Yale University Press, 1974
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Perry, Michael J.
Morality, politics, and law
Oxford University Press, 1990
 Buku Teks SO