https://www.bbc.co.uk/cymrufyw/54723761
Chwedl Gwyn ap Nudd
https://www.youtube.com/watch?v=jQ59JQOC2zk
Traddodiadau Calan Gaeaf
https://www.bbc.co.uk/cymrufyw/amp/54720045?__twitter_impression=true
https://www.bbc.co.uk/cymrufyw/54723761
Chwedl Gwyn ap Nudd
https://www.youtube.com/watch?v=jQ59JQOC2zk
Traddodiadau Calan Gaeaf
https://www.bbc.co.uk/cymrufyw/amp/54720045?__twitter_impression=true
https://twitter.com/YBydarBedwar/status/1321391475897356288
Adroddiad gan Sefydliad Joseph Rowntree
https://www.bbc.co.uk/cymrufyw/amp/54755321