Cawrdaf

Tangwm

The Lives of the British Saints (London: Honourable Society of Cymmrodorion, 1908), 95    Darllen ar-lein

Parochiale Anglicanum (London: 1733), 216

Thesaurus Rerum Ecclesiasticarum (London: 1754), 503

Dictionary of the Place-Names of Wales (Llandysul: Gomer, 2007), 259

An Essay on the Welsh Saints or the Primitive Christian usually considered to have been the Founders of Churches in Wales (London: Longman, Rees, Orme, Brown, Green and Longman, 1836), 270

'Parochiale Wallicanum' yn Y Cymmrodor (1910), 94