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Buku Teks
U.P. Law Center, 1975
Buku Teks
edited by Adam Mossoff, professor of law, editor; George Mason, University School of Law, Virginia, USA, editor
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Buku Teks
Nurul Barizah, author
University of Indonesia, Faculty of Law, 2017
Artikel Jurnal
Kintner, Earl W., author
Macmillan, 1975
Buku Teks