https://www.ituc-csi.org/IMG/pdf/2024_ituc_global_rights_index_en.pdf
https://www.ceps.eu/system/files/CEPS%20-%20LINKEDIN%20study%20FINAL.pdf
http://library.fes.de/pdf-files/iez/13375.pdf
http://www.ilo.org/wcmsp5/groups/public/—dgreports/—dcomm/—publ/documents/publication/wcms_548950.pdf