1
Foilsithe: c2006.
2
Foilsithe: c2006.
Links: Faigh an téacs iomlán
3
Foilsithe: 2014.
4
Foilsithe: 2009.
Superior document: RAND Corporation monograph series ; MG-838-USCC404-310803432
5
Foilsithe: c2012.;, 2012.
6
Foilsithe: c2012.
Links: Faigh an téacs iomlán
7
Foilsithe: 2011.
Superior document: Rand Corporation monograph series ; MG-934-OSD
8
Foilsithe: 2011.
Superior document: Rand Corporation monograph series ; MG-934-OSD
Links: Faigh an téacs iomlán
9
Foilsithe: 2014
10
Foilsithe: 2013