Coba jelasin Bacaan tambahan dari Kongres Partai Komunis Uni Soviet XXVIII dong

Jonathan Harris. Subverting the System: Gorbachev's Reform of the Party's Apparat, 1986-1991. Rowman & Littlefield Publishers, 2005. ; Ch. 6: Towards the 28th Congress of the CPSU: 1990, pp. 107–120

Bill Keller, EVOLUTION IN EUROPE; Soviet Party: Hazy Future. New York Times, July 13, 1990. Accessed October 18, 2008