Efail y gôf, Owain Glyndŵr, cyfrol o gerddi a mathemategwyr Cymreig sy'n cael sylw Dei. Dei Tomos discusses Owain Glyn Dŵr and Welsh mathematicians. Show more
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Efail y gôf, Owain Glyndŵr, cyfrol o gerddi a mathemategwyr Cymreig sy'n cael sylw Dei. Dei Tomos discusses Owain Glyn Dŵr and Welsh mathematicians. Show more