11 Mawrth 2013
- 22:0122:01, 11 Mawrth 2013 gwahan hanes +781 Amonia Ychwanegwyd braslun o broses Haber
- 18:1318:13, 11 Mawrth 2013 gwahan hanes +179 Griffith Jones, Llanddowror Dim crynodeb golygu
- 18:0718:07, 11 Mawrth 2013 gwahan hanes +170 Griffith Jones, Llanddowror Dim crynodeb golygu