Amalrik, Andrei
      
      
         Harper and Row, 1980
       Buku Teks SO
   
      edited by Ralph S. Clem ; foreword by Edward Allworth
      
         Frederick A. Praeger, 1975
       Buku Teks SO
   
Carr, Edward Hallet
      
      
         Macmillan, 1959
       Buku Teks SO
   
Lenin, Vladimir I.
      
      
         Foreign Languages Publishing House, 1963
       Buku Teks SO
   
      
      
         Longman Cheshire, 1991
       Buku Teks SO