Erades, Judge
Martinus Nijhoff Publishers, 1983
Buku Teks
[Edward Elgar, Universitas Indonesia], 2014
UI - Makalah dan Kertas Kerja
Nowak, John E., author
Thomson/West, 2010
Buku Teks
Oceana Publications, 1958
Buku Teks
Schmitt, Carl, author
Duke University Press, 2008
Buku Teks