Analysis of information sources in references of the Wikipedia article "Xe hơi ngạt" in Vietnamese language version.
|title= trống hay bị thiếu (trợ giúp)|tựa đề= trống hay bị thiếu (trợ giúp)Source: Office of the United States Chief Counsel for Prosecution of Axis Criminality: Nazi Conspiracy and Aggression – Washington, U.S Govt. Print. Office, 1946, Vol III, p. 418;