Gw mau tau Sumber sekunder dari Rhys ap Gruffydd

Carr, A. D. 1995. Medieval Wales. Macmillan. .

Cowley, F. G. 1977. The monastic order in South Wales 1066–1349 University of Wales Press. .

Davies, R. R. 1987. Conquest, coexistence and change: Wales 1063–1415 Clarendon Press, University of Wales Press. .

Jones, F. 1969. God bless the Prince of Wales: four essays for investiture year Carmarthenshire Community Council (Local History Committee). .

Lloyd, J. E. 1911. A history of Wales from the earliest times to the Edwardian conquest. Longmans, Green & Co.

Maund, K. 2006. The Welsh kings: warriors, warlords and princes. Tempus. .

Moore, D. 2005. The Welsh wars of independence: c. 410-c.1415. Tempus. .

Pryce, H. 2004. "Rhys ap Gruffudd (1131/2–1197)", Oxford Dictionary of National Biography. Accessed 22 January 2013.

Rees, D. 1985. The son of prophecy: Henry Tudor's road to Bosworth. Black Raven Press. .

Rees, S. 1992. Dyfed (A guide to ancient and historic Wales series). HMSO. .

Siddons, M. P. 1993. The Development of Welsh Heraldry, vol. 2. National Library of Wales. .

Tout, T. F., revised Pryce, H. 2004. "Gruffudd ap Rhys (d. 1137)", Oxford Dictionary of National Biography. Oxford University Press. Accessed 22 January 2013.

Turvey, R. 1997, The Lord Rhys: Prince of Deheubarth. Gomer. .

Warren, W. L. 1973 Henry II. Eyre Methuen. .

Williams, J. E. C. 1976. "Aberteifi, 1176". Taliesin 32, pp. 30–35.