Europe?s new security challenges
edited by Heinz Gärtner, Adrian Hyde-Price and Erich Reiter
Lynne Rienner Publishers, 2001
 Buku Teks
Space security: trends and challenges
The National Institute for Defense Studies, editor
The National Institute for Defense Studies, 2016
 Buku Teks
Waeve, Ole
Identity, migration and the new security agenda in europe / Ole Waever,Barry Buzan, Morten Kelstrup and Pierre Lemaitre.
Pinter Publishers Ltd, 1993
 Buku Teks
Proportionality: new frontiers, new challenges
edited by Vicki C. Jackson, Mark Tushnet
Cambridge University Press, 2017
 Buku Teks
Proportionality: new frontiers, new challenges
edited by Vicki C. Jackson, Mark Tushnet
Cambridge University Press, 2017
 Buku Teks