Jelaskan Lihat juga dari Annwn dalam bahasa melayu

Lambert, Pierre-Yves. (2003). La langue gauloise: description linguistique, commentaire d’inscriptions choisies. Paris: Errance. 2nd ed.

Sims-Williams, Patrick. (1990). "Some Celtic otherworld terms". Celtic Language, Celtic Culture: a Festschrift for Eric P. Hamp, ed. Ann T. E. Matonis and Daniel F. Mela, pp. 57–84. Van Nuys, Ca.: Ford & Bailie.

Davies, Sioned. (2007). The Mabinogion – a new translation. (Oxford World's Classics.)

Mac Cana, Proinsias. (1983). Celtic Mythology (Library of the World's Myths and Legends). Littlehampton Book Services Ltd.

Lindahl, C. A. (2000–2002). Medieval Folklore. Oxford: Oxford University Press, Inc.

Matthews. John. (1996). Sources of the Grail. Edinburgh: Floris Books ISBN 0-86315-233-3.

Dixon-Kennedy, Mike. (1996). Celtic Myth & Legend. London: Blandford and Cassel Imprint ISBN 0-7137-2571-0.