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Arfer Effeithiol | 23/11/2023
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Adroddiad thematig | 21/11/2023
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Arfer Effeithiol | 06/02/2023
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Arweiniad atodol | 01/09/2021
Arweiniad atodol ar gyfer arolygu rhifedd mewn ysgolion - Medi 2021
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Arfer Effeithiol | 21/12/2017
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Arfer Effeithiol | 21/12/2017
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Arfer Effeithiol | 21/12/2017
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Arfer Effeithiol | 21/12/2017