Tolong jelaskan mengenai Rujukan dari German Cross dalam bahasa melayu

For Führer And Fatherland: Military Awards of the Third Reich by LTC John R. Angolia. 1976 R. James Bender Publishing. ISBN 0-912138-14-9

"The German Cross in Gold and Silver" by Dietrich Maerz, B&D Publishing LLC, Richmond, MI, 2009, ISBN 978-0-9797969-2-0

"Panzer Commander" by Hans Von Luck, Praeger Publishers, New York, NY, 1989, ISBN 0-440-20802-5