Carr, Edward Hallet
Interregnum 1923-1924 : a history of Soviet Russia
Macmillan, 1954
 Buku Teks SO
Freund, H. A.
Rusia from A to Z : revolution-state and party-foreign relation economic system-social principles general knowledge
1945, Angus and Robertson
 Buku Teks SO
Brezhnev, L. I.
Following Lenin's course: speeches and articles (1972-1975)
Progress, 1975
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Daniels, Robert V
Is Russia reformable?: Change and resistance from Stalin to Gorbachev
Westview Press, 1988
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Zetkin, Klara
My Recollections of Lenin
Foreign Languages Publishing House, 1956
 Buku Teks SO