Manuscripts
Manuscript:
Aberystwyth, National Library of Wales, Peniarth MS 4 = Llyfr Gwyn Rhydderch, part 2
  • c. 1350
Thomas, Peter Wynn [ed.], D. Mark Smith, and Diana Luft [transcribers and encoders] (et al.), Welsh prose (Rhyddiaith Gymraeg) 1350–1425, Online: Cardiff University. URL: <http://www.rhyddiaithganoloesol.caerdydd.ac.uk>.
“NLW MS. Peniarth 4 (The White Book of Rhydderch, part 2)”
Huws, Daniel, Medieval Welsh manuscripts, Cardiff and Aberystwyth: University of Wales Press, 2000.
227   “Llyfr Gwyn Rhydderch”
Evans, J. Gwenogvryn, Report on manuscripts in the Welsh language, vol. 1:2: Peniarth, Historical Manuscripts Commission, London, 1899.
Internet Archive: <link>
305   “MS 4”
Mabinogion