Rujukan Duke

Chan, Wing-tsit, Chu Hsi New Studies. University of Hawaii Press: 1989. ISBN 978-0-8248-1201-0
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Lewis, Archibald R. "The Dukes in the Regnum Francorum, A.D. 550-751." Speculum, Vol. 51, No 3 (July 1976), pp 381–410.
Stenton, Sir Frank M. Anglo-Saxon England Third Edition. Oxford University Press: 1971.
Thompson, E. A. The Goths in Spain. Clarendon Press: Oxford, 1969.

Berkaitan

Rujukan