Umar Ahmad Kasule, author
Noordeen, 2008
Buku Teks
Beyleveld, Deryck, author
Oxford University Press, 2001
Buku Teks
edited by Ian Brownlie, Guy S. Goodwin-Gill
Clarendon Press, 1971
Buku Teks
Centre for Human Right, United Nations , 1991
Buku Teks
Friedman, Mark, author
Capstone Global Library, 2012
Buku Teks