1. Doctor of Philosophy
2. Rheolaeth strategol ar hyfforddiant iaith mewn gweithleoedd sector cyhoeddus

   Author: Gruffydd, I., 2018

   Supervisor: Hodges, R. (Supervisor) & Prys, C. (Supervisor)

   Student thesis: Doctor of Philosophy

3. Rheolaeth strategol ar hyfforddiant iaith mewn gweithleoedd sector cyhoeddus

   Author: Gruffydd, I., 2018

   Supervisor: Hodges, R. (Supervisor) & Prys, C. (Supervisor)

   Student thesis: Doctor of Philosophy

4. Y Gymraeg o fewn y byd digidol: Profiadau ac agweddau siaradwyr Cymraeg yng Ngwynedd o ddefnyddio apiau Cymraeg neu ddwyieithog

   Author: Pritchard, S., 12 Apr 2010

   Supervisor: Prys, C. (Supervisor) & Hodges, R. (Supervisor)

   Student thesis: Doctor of Philosophy