Tolong jelaskan mengenai Rujukan dari Marconi Electronic Systems dalam bahasa melayu

"Forty Years of Marconi Radar from 1946 to 1986", GEC Review, Volume 13, No. 3, 1998

"Boeing, Lockheed Martin, BAE Systems, and Raytheon to create B2B exchange for the aerospace and defense industry, powered by Microsoft"

Syarikat elektronik di United Kingdom