Olivera Simic, Zala Volcic, Catherine R. Philpot, editors
[Springer, ], 2012
eBooks
Blumberg, Herbert H., author
Cambridge University Press , 2006
Buku Teks
Diane Bretherton, Nikola Balvin, editor
[Springer, ], 2012
eBooks
European centre of conflict prevention, 1999
Buku Teks
Boutros-Ghali, Boutros, 1922-, author
United Nations, 1994
Buku Teks