Trosolwg o’r papur polisi: Deddf yr Undeb Ewropeaidd (Ymadael) a Fframweithiau Cyffredin: 26 Mawrth i 25 Mehefin 2021 - GOV.UK (www.gov.uk)
Policy paper overview: The European Union (Withdrawal) Act and Common Frameworks: 26 March to 25 June 2021 - GOV.UK (www.gov.uk)