Holsinger, Ralph L.
Media law
McGraw-Hill, 1994
 Buku Teks SO
Smith, James Cruickshanks, 1867-1946
Fundamental Principles of Law The Law of Contract
Sweet & Maxwell, 1989
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Kelsen, Hans
Principles of international law
Holt, Rinehart and Winston, 1967
 Buku Teks SO
Goldstein, Paul
Copyright : principles, law and practice
Little, Brown, 1989
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Ford, H.A.J.
Principles of Company Law
Butterworth, 1978
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