Duxbury, Alison
Cambridge University Press, 2019
eBooks
Selby, David
Cambridge University Press, 1988
Buku Teks
Dijk, P. van, editor
Kluwer Law & Taxation Publishers, 1990
Buku Teks
Unesco, 1970
Buku Teks
edited by Ian Brownlie, Guy S. Goodwin-Gill
Clarendon Press, 1971
Buku Teks