^Harper, Douglas (November 2001). "Online Etymology Dictionary:Communism"(HTML). Online Etymology Dictionary (dalam bahasa English). Douglas Harper. Diakses tanggal 2008-08-27. Originally a theory of society; as name of a political system, 1850, a translation of Ger. Kommunismus, in Marx and Engels' "Manifesto of the German Communist Party."Pemeliharaan CS1: Bahasa yang tidak diketahui (link)