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5Jules Coleman, The Practice of Principle : In Defence of a Pragmatist Approach to legal theory. Oxford : Oxford University Press, 2001.
6H. L. A, Hart, Law, Liberty, and Morality. Stanford, 1963.
7Larry Alexander & Emily Sherwin, The Rule of Rules : Morality, Rules, and the Dilemmas of Law. Durham and London : Duke University Press, 2001.
8H. L. A. Hart, The concept of law. 2nd , Oxford: Clarendon Press, 1994.
9Dworkin, Ronald, Law's Empire. Oxford and Portland: Hart Publishing, 2000.
10Kenneth Einar Himma, "Inclusive Legal Positivism", in The Oxford Handbook of Jurisprudence and Philosophy of Law. Jules L. Coleman & Scott Shapiro ed. , Oxford: Oxford University Press, 2002.
