Northrop Grumman E-2 Hawkeye (Slovak Wikipedia)

RSAF's First Gulfstream 550 Airborne Early Warning Aircraft Returns to Singapore. Ministry of Defence (Singapore), 19. február 2009. Dostupné online [cit. 2010-10-04]. Archivované 2017-03-03 z originálu.

mysnafu.com

'CGAW-1 and Airfac Norfolk article [online]. [Cit. 2012-04-19]. Dostupné online. Archivované 2012-02-10 z originálu.

Fiscal Year (FY) 2012) Budget Estimates Aircraft Procurement, Navy [online]. Department of the Navy, Február 2011. S. 167. Dostupné online. 6 E-2D are being procured in FY2012, for a total flyaway cost of $1,033.891312m and a procurement cost of 1,275.046m.

Archivovaná kópia [online]. [Cit. 2012-04-19]. Dostupné online. Archivované 2011-10-07 z originálu.

Defense Security Cooperation Agency News Release. October 3, 2008, retrieved Sept. 14, 2009 [online]. [Cit. 2012-04-19]. Dostupné online. Archivované 2011-07-21 z originálu.

RSAF's First Gulfstream 550 Airborne Early Warning Aircraft Returns to Singapore. Ministry of Defence (Singapore), 19. február 2009. Dostupné online [cit. 2010-10-04]. Archivované 2017-03-03 z originálu.
Defense Security Cooperation Agency News Release. October 3, 2008, retrieved Sept. 14, 2009 [online]. [Cit. 2012-04-19]. Dostupné online. Archivované 2011-07-21 z originálu.
'CGAW-1 and Airfac Norfolk article [online]. [Cit. 2012-04-19]. Dostupné online. Archivované 2012-02-10 z originálu.
Archivovaná kópia [online]. [Cit. 2012-04-19]. Dostupné online. Archivované 2011-10-07 z originálu.