Coba jelasin Bacaan tambahan dari Kerajaan Strathclyde dong

Barrow, G.W.S., Kingship and Unity: Scotland 1000–1306. Edinburgh University Press, Edinburgh, (corrected edn) 1989. ISBN 0-7486-0104-X

Foster, Sally M., Picts, Gaels, and Scots: Early Historic Scotland. Batsford, London, 2nd edn, 2004. ISBN 0-7134-8874-3

Higham, N.J., The Kingdom of Northumbria AD 350–1100. Sutton, Stroud, 1993. ISBN 0-86299-730-5

Jackson, Kenneth H., "The Britons in southern Scotland" in Antiquity, vol. 29 (1955), pp. 77–88. ISSN 0003-598X .

Lowe, Chris, Angels, Fools and Tyrants: Britons and Anglo-Saxons in Southern Scotland. Canongate, Edinburgh, 1999. ISBN 0-86241-875-5

CELT: Corpus of Electronic Texts at University College Cork including the Annals of Ulster, the Annals of Tigernach and the Chronicon Scotorum.

The Anglo-Saxon Chronicle, manuscripts D and E, various editions including an XML  version by Tony Jebson.

Google Books includes the Chronicon ex chronicis attributed to Florence of Worcester and James Aikman's translation (The History of Scotland) of George Buchanan's Rerum Scoticarum Historia

Skotlandia pada Abad Pertengahan Awal