Jay Stewart Publications, Inc., 1971
Buku Teks SO
Palgrave Macmillan, 2012
Buku Teks
Reichert, Elisabeth
Columbia University Press, 2003
Buku Teks
Schenkman Publishing company, 1974
Buku Teks
Dijk, P. van
Kluwer Law & Taxation Publishers, 1990
Buku Teks