
https://www.tuc.org.uk/news/cbi-and-tuc-call-prime-minister-change-brexit-approach?language=cy

https://ukandeu.ac.uk/wp-content/uploads/2021/02/UK-regulation-after-Brexit.pdf?mc_cid=1d4cf56e72&mc_eid=815b1928ec

https://voxeu.org/system/files/epublication/Economics%20of%20Brexit.pdf