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David Crane (28 November 2001). "SIG 552 Commando Mini-Assault Rifle for Special Operations". DefenseReview.com (DR): An online tactical technology and military defense technology magazine with particular focus on the latest and greatest tactical firearms news (tactical gun news), tactical gear news and tactical shooting news. Archived from the original on 21 October 2014. Retrieved 25 December 2014.
O’Grady, Mary Anastasia (6 August 2017). "The Guns of Venezuela". The Wall Street Journal. Archived from the original on 6 March 2018. Retrieved 31 March 2018.
wsj.com
O’Grady, Mary Anastasia (6 August 2017). "The Guns of Venezuela". The Wall Street Journal. Archived from the original on 6 March 2018. Retrieved 31 March 2018.