
https://www.ituc-csi.org/ituc-global-rights-index-2020

http://www.bsa.natcen.ac.uk/latest-report/british-social-attitudes-34/key-findings/context.aspx?_ga=2.25464057.552181158.1498632950-1412959047.1496247036

https://ctxt.es/es/20191113/Firmas/29535/sentencia-del-proces-negociacion-politica-manifiesto-chomsky-catalunya.htm