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WikiPedia: Edward_A._Murphy_Jr. http://www.improbable.com/airchives/paperair/volum... http://www.voanews.com/specialenglish/2006-11-30-v... http://www.daytoninnovationlegacy.org/murphy.html https://www.voanews.com/specialenglish/2006-11-30-... https://web.archive.org/web/20040603061512/http://... https://books.google.com.vn/books?id=LdpdAAAAQBAJ&...