| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2000 | 978-1-903314-01-2 | D.P. Davies | Efengyl Marc (Cyfres o Esboniadau S.) |
| '' | 978-1-903314-09-8 | Harri Parri | Elen Roger - Portread |
| 2003 | 978-1-903314-56-2 | Cledwyn Jones | Mi Wisga'i Gap Pig Gloyw - John Glyn Davies 1870-1953 |