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North-Western University Press, 1965
Buku Teks
Honnold, John O.
Kluwer law and Taxation Publishers, 1989
Buku Teks
Maskun, author
University of Indonesia, Faculty of Law, 2012
Artikel Jurnal
Katselli Proukaki, Elena, author
Routledge, 2010
Buku Teks
American Bar Association, 1978
Buku Teks