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1Cyhoeddwyd 1983
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2Cyhoeddwyd 1983
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3Cyhoeddwyd 1981
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5Cyhoeddwyd 1980
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9
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11Cyhoeddwyd 1983
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19Cyhoeddwyd 1977
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20gan Batubara, Cosmas, 1938-
Cyhoeddwyd 1981
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