Criddle, Evan J, author
Cambridge University Press, 2016
eBooks
Selby, David, author
Cambridge University Press, 1988
Buku Teks
Omar, Imtiaz, author
Kluwer Law International, 1996
Buku Teks
Unesco, 1970
Buku Teks
edited by Ian Brownlie, Guy S. Goodwin-Gill
Clarendon Press, 1971
Buku Teks