Daniels, Philip (1989). "The Italian communist party and the European parliament elections of June 1989". Journal of Communist Studies. 5 (4): 195–200. doi:10.1080/13523278908414999.
theguardian.com
Sassoon, Donald (18 August 2010). "Francesco Cossiga obituary". The Guardian. Archived from the original on 27 March 2023. Retrieved 16 January 2024.
