Johannes, Hartmut, author
A.W. Sijthoff, 1976
Buku Teks
edited by Claire A. Hill and Brett H. McDonnell
Edward Elgar Publishing, 2016
Buku Teks
Bogaert, Geert
Graham & Trotman/M. Nijhoff, 1993
Buku Teks
Klabbers, Jan, author
Cambridge University Press, 2009
Buku Teks
edited by Warren J. Samuels and A. Allan Schmid
Kluwer-Nijhoff, 1981
Buku Teks