Coba jelasin Lihat pula dari Daftar raja legendaris Britania dong

Charles W. Dunn, in a revised translation of Sebastian Evans, History of the Kings of Britain by Geoffrey of Monmouth. E.P. Dutton: New York. 1958. ISBN 0-525-47014-X

John Morris. The Age of Arthur: A History of the British Isles from 350 to 650. Barnes & Noble Books: New York. 1996 (originally 1973). ISBN 0-7607-0243-8

John Jay Parry and Robert Caldwell. Geoffrey of Monmouth in Arthurian Literature in the Middle Ages, Roger S. Loomis (ed.). Clarendon Press: Oxford University. 1959. ISBN 0-19-811588-1

Brynley F. Roberts, Geoffrey of Monmouth and Welsh Historical Tradition, Nottingham Medieval Studies, 20 (1976), 29-40.

J.S.P. Tatlock. The Legendary History of Britain: Geoffrey of Monmouth's Historia Regum Britanniae and its early vernacular versions. University of California Press. Berkeley. 1950.