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Hidlo yn ôl (6 canlyniad, wedi trefnu yn ôl y diweddaraf)
Adroddiad thematig | 04/05/2023
pdf, 936 KB Added 04/05/2023
Adroddiad thematig | 04/03/2021
pdf, 9.1 MB Added 04/03/2021
Adroddiad thematig | 04/03/2021
pptx, 3.29 MB Added 04/03/2021
Adroddiad thematig | 01/06/2014
pdf, 659.67 KB Added 01/06/2014
Adroddiad thematig | 01/06/2014
pptx, 328.85 KB Added 01/06/2014