edited by Amrei Muller, Hege Elisabeth Kjos
Cambridge University Press, 2017
Buku Teks
Selby, David
Cambridge University Press, 1988
Buku Teks
Unesco, 1970
Buku Teks
edited by Ian Brownlie, Guy S. Goodwin-Gill
Clarendon Press, 1971
Buku Teks
Centre for Human Right, United Nations , 1991
Buku Teks