Coba jelasin Lihat pula dari Operasi Walküre dong

Daftar anggota rencana 20 Juli

Hans Bernd Gisevius, Valkyrie: An Insider's Account of the Plot to Kill Hitler, 2009 reprint of one volume abridgement of two volume text, To the Bitter End, 1947. Foreword by Allen Welsh Dulles, introduction by Peter Hoffmann. Translated by Richard and Clara Winston; Da Capo Press, Cambridge, MA ISBN 978-0-306-81771-7

Nigel Jones, Countdown to Valkyrie: The July Plot to Assassinate Hitler. Frontline, 2009