* Concerning questions of Leninism== وصلات خارجية ==* The Draft Program of the Communist International: A Criticism of Fundamentals, Trotsky, Leon, 1928 (also known as "The Third International After Lenin")* Marxist.com on 'Socialism in one country'* On Social Relations in Russia Engels, Frederick 1874
"Friedrich Engels, "The Principles of Communism", 1847==See also==*Marxism-Leninism*State capitalism*Socialist state*Impossibilism*Permanent Revolution==References====Further reading==* Concerning questions of Leninism== External links ==* The Draft Program of the Communist International: A Criticism of Fundamentals, Trotsky, Leon, 1928 (also known as "The Third International After Lenin")* Marxist.com on 'Socialism in one country'* On Social Relations in Russia Engels, Frederick 1874