Verzariu, Pompiliu, author
McGraw-Hill, 1985
Buku Teks
edited by M.A. Bienefeld and Martin Godfrey
John Wiley & Sons, 1982
Buku Teks
Bhagwati, Jagdish, author
Penguin Books, 1969
Buku Teks
Folsom, Ralph Haughwout, author
[publisher not identified], [date of publication not identified]
Buku Teks
Bertrams, Roeland F.
Kluwer Law International, 1996
Buku Teks