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Adroddiadau'r iaith Gymraeg Tŷ'r Cwmnïau
Adroddiadau monitro blynyddol yr iaith Gymraeg gan Dŷ'r Cwmnïau.
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Published 21 July 2025
Adroddiadau monitro blynyddol yr iaith Gymraeg gan Dŷ'r Cwmnïau.
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