Oleg Penkovsky (Indonesian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Oleg Penkovsky" in Indonesian language version.

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archive.org

Schecter, Jerrold L.; Deriabin, Peter S. (1992). The Spy Who Saved the World: How a Soviet Colonel Changed the Course of the Cold War. New York: C. Scribner's Sons. hlm. 284. ISBN 978-0-684-19068-6.