Random House, 1963
Buku Teks
Siregar, Fritz Edward
Faculty of Law University of Indonesia, 2015
Artikel Jurnal
John Benjamins B. V., 1982
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edited by Louis W. Goodman, William M. LeoGrande, Johanna Mendelson Forman
Westview Press, 1992
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Braybrooke, David
Random House , 1968
Buku Teks