ج) منابع انگليسى
Igor Primoratz, Justifying Leyal Punishment, U.S.A., 1989.
Conrad, Johnson, Philosophy of Law, U.S.A., 1993.
The New Encyclopedia Britannica, U.S.A., 1974.
Henry Campbell Black, Blak's Law Dictionary, 6th ed, U.S.A., 1990.
Oxford Reference, A Concise Dictionary of Law, Second Edition, 1990