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عمومی::
دفتر پاسخگویی دولت ایالات متحده
United States Government Accountability Office, Information Security: Weaknesses Continue amid New Federal Efforts to Implement Requirements, GAO-12-137 (Washington, DC: United States Government Accountability Office, October 2011), 4.
United States Government Accountability Office, Electronic Warfare: DOD Actions Needed to Strengthen Management and Oversight, GAO-12-479 (Washington, DC: United States Government Account- ability Office, July 2012), 1.
United States Government Accountability Office, Airborne Electronic Attack: Achieving Mission Objectives Depends on Overcoming Acquisition Challenges, GAO-12-175 (Washington, DC: United States Government Accountability Office, March 2012).
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