Kahn, Herman
Thomas Y. Crowell Publishers , 1979
Buku Teks
Jurnal Hukum Internasional: Indonesian Journal of International Law, Vol. 3 No. 1 Oktober 2005 : 1-30, 2005
Artikel Jurnal
Mark Bovens, Paul't Hart, B. Guy Peters
Edward Elgar Publishing, Inc, 2001
Buku Teks
Fortune, Joyce
John Wiley & Sons, 2005
Buku Teks
Artikel Jurnal