https://gov.wales/sites/default/files/publications/2020-08/childcare-play-and-early-years-division-response-to-covid-19-integrated-impact-assessment.pdf
is-adran-gofal-plant-chwarae-ar-blynyddoedd-cynnar-ymateb-i-covid-19-asesiad-effaith-integredig.pdf (llyw.cymru)