Tolong jelaskan mengenai Sumber: FAS.org dari B-2 Spirit dalam bahasa melayu

CNN - B-2 stealth bombers make combat debut - 24 March 1999

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Richardson, Doug. Northrop B-2 Spirit (Classic Warplanes). New York: Smithmark Publishers Inc., 1991. ISBN 0-8317-1404-2.

Spick, Mike. The Great Book of Modern Warplanes. St. Paul, Minnesota: MBI Publishing Company, 2000. ISBN 0-7603-0893-4.

Winchester, Jim, ed. "Northrop B-2 Spirit". Modern Military Aircraft (Aviation Factfile). Rochester, Kent, UK: Grange Books plc, 2004. ISBN 1-84013-640-5.

The World's Great Stealth and Reconnaissance Aircraft. New York: Smithmark, 1991. ISBN 0-8317-9558-1.