- OCLC 67476613. 5 vols. Roberts,
Brynley F. (1980), Brut Tysilio:
darlith agoriadol gan
Athro y
Gymraeg a'i
Llenyddiaeth (in Welsh), Abertawe:
Coleg Prifysgol...
- Roberts. Cardiff, 1991. 97-116. Roberts,
Brynley F. Brut Tysilio.
Darlith agoriadol gan
Athro y
Gymraeg a'i Llenyddiaeth. Swansea, 1980. ISBN 978-0-86076-020-7...
- History,
University of Aberdeen. Jones, T. 1953 Brut y Tywysogion.
Darlith Agoriadol.
Cardiff Jones, T. 1941 Brut y Tywysogyon.
Peniarth MS. 20. Cardiff: University...
- and
annotated versions for
Sunday school use). Y Sacramentau:
anerchiad agoriadol, Bala, 1894. De
Imitatione Christi … Rhagdraeth, Bala, 1907 (the introduction...
