Budgey, A. (1992), " 'Preiddeu Annwn' and the Welsh Tradition of Arthur", in Byrne, Cyril J.; Harry, Margaret Rose; Ó Siadhail, Padraig (eds.), Celtic Languages and Celtic People: Proceedings of the Second North American Congress of Celtic Studies, held in Halifax, August 16–19, 1989, Halifax, Nova Scotia: D'Arcy McGee Chair of Irish Studies, Saint Mary's University, pp.391–404, ISBN 978-0-9696252-0-9 . Geoffrey of Monmouth, Vita Merlini lines 1128–1135. See: Geoffrey of Monmouth (2007). Huber, Emily Rebekah (ed.). "Arthur from the Vita Merlini". The Camelot Project. University of Rochester . Retrieved 22 September 2014.

Myres, J. N. L. (1986), The English Settlements, Oxford: Oxford University Press, ISBN 978-0-19-282235-2 . Burns, E. Jane (1985), Arthurian Fictions: Re-reading the Vulgate Cycle, Columbus: Ohio State University Press, ISBN 978-0-8142-0387-3 . Bromwich, Rachel (1983), "Celtic Elements in Arthurian Romance: A General Survey", in Grout, P. B.; Diverres, Armel Hugh (eds.), The Legend of Arthur in the Middle Ages, Woodbridge: Boydell and Brewer, pp.41–55, ISBN 978-0-85991-132-0 .

Thorpe, Lewis, ed. (1966), Geoffrey of Monmouth, The History of the Kings of Britain, Harmondsworth: Penguin, OCLC 3370598 . This book is marketed towards children, but it comes from a different era of children's literature when authors introduced advanced ideas to children. Unlike other "kids Arthur" books I have seen, the content in this book is just barely sanitized, however. The writer does a great job of including a lot of the adult themes of Arthurian Legend in a way that isn't too graphic that it turns off children. Davies, John (1993). A history of Wales. Internet Archive. London: Allen Lane the Penguin Press. p.133. ISBN 978-0-7139-9098-0. ; "Arthur's Tomb". Glastonbury Abbey Archaeology . Retrieved 8 August 2022. The Heroic Age: A Journal of Early Medieval Northwestern Europe. An online peer-reviewed journal that includes regular Arthurian articles; see especially the first issue. Jankulak, Karen (2000). The Medieval Cult of St Petroc. Boydell & Brewer. ISBN 0-85115-777-7 . Retrieved 6 January 2010.

Lacy, Norris J. (1996a), "Character of Arthur", in Lacy, Norris J. (ed.), The New Arthurian Encyclopedia, New York: Garland, pp.16–17, ISBN 978-1-56865-432-4 . An enchanting take on the legend of King Arthur from Britain’s best-loved children’s author, Michael Morpurgo. Former Children's Laureate Michael Morpurgo needs no introduction. He is one of the most successful children's authors in the country, loved by children, teachers and parents alike. Michael has written more than forty books for children including the global hit War Horse, which was made into a Hollywood film by Steven Spielberg in 2011. Coe, John B.; Young, Simon (1995), The Celtic Sources for the Arthurian Legend, Felinfach, Lampeter: Llanerch, ISBN 978-1-897853-83-2 .Problems have been identified, however, with using this source to support the Historia Brittonum 's account. The latest research shows that the Annales Cambriae was based on a chronicle begun in the late 8th century in Wales. Additionally, the complex textual history of the Annales Cambriae precludes any certainty that the Arthurian annals were added to it even that early. They were more likely added at some point in the 10th century and may never have existed in any earlier set of annals. The Badon entry probably derived from the Historia Brittonum. [10] Breeze, Andrew (September 2016). "Arthur's Battles and the Volcanic Winter of 536-7". Northern History. LIII (2): 161–172. doi: 10.1080/0078172x.2016.1195600. S2CID 164111727.