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'Casgliad o Lên Gwerin wedi'i gofnodi oddi ar lafar', sef chwe thraethawd a luniwyd gan fyfyrwyr 'Cwrs Llên Gwerin', Coleg y Brifysgol, Bangor. [Nantgwynant; Beddgelert; Llanuwchllyn; Llanbedr-pont-Steffan; Llanfair P.G; Llanfair Mathafan Eithaf; Dolwyddelan; 1984-5]
