Llyfryddiaeth

David Browne & Toby Driver, Bryngaer Pen Dinas Hill-fort (Royal Commission on the Ancient and Historical Monuments of Wales, 2001)

H. Burnham, A Guide to Ancient and Historic Wales: Clwyd and Powys (Cadw/HMSO, 1995)

Miranda J. Green, The Celtic World (1995)

Simon James, Exploring the World of the Celts (1993)

F. Lynch, A guide to Ancient and Historic Wales: Gwynedd (Cadw / HMSO, 1995)

F. Lynch, S Aldhouse - Green & J. L. Davies, Prehistoric Wales (Sutton, 2000)

S. Rees, A guide to Ancient and Historic Wales: Dyfed (Cadw/HMSO, 1992)

E. Whittle, A guide to Ancient and Historic Wales: Glamorgan and Gwent (Cadw/HMSO, 1992)

J Dyer, Hill-forts of England and Wales (Shire Archaeology, 1992)