Llywelyn ap Gruffudd: Perbedaan antara revisi

* [[Gwynfor Evans]] (2001) ''Cymru O Hud'' [[Abergwyngregyn]]

* [[Gwynfor Evans]] (2002) ''Eternal Wales'' [[Abergwyngregyn]]

* [[John Edward Lloyd]] (1911) ''A history of Wales from the earliest times to the Edwardian conquest'' (Longmans, Green & Co.)

* Kari Maund (2006) ''The Welsh kings: warriors, warlords and princes'' (Tempus) {{ISBN|0-7524-2973-6}}

* T. Jones Pierce Cymdeithas Hanes Sir Caernarfon- Trafodion (1962) ''Aber Gwyn Gregin''

* J. Beverley Smith (2001) ''Llywelyn ap Gruffudd: Prince of Wales'' (University of Wales Press) {{ISBN|0-7083-1474-0}}

* David Stephenson (1984) ''The governance of Gwynedd'' ([[University of Wales Press]]) {{ISBN|0-7083-0850-3}}

* Y Traethodydd (Gorffennaf 1998) ''Tystiolaeth Garth Celyn'' {{ISSN|0969-8930}}