Leeuwen, Mathijs van
Routledge, Taylor & Francis Group, 2016
Buku Teks
European centre of conflict prevention, 1999
Buku Teks SO
editor dan pengantar, Rocky Gerung
Filsafat - UI Press, 2007
Buku Teks SO
Oberschall, Anthony
Routledge , 1997
Buku Teks SO
editors, Olivera Simic, Zala Volcic, Catherine R. Philpot
Springer, 2012
eBooks