
https://www.taxobservatory.eu//www-site/uploads/2023/10/global_tax_evasion_report_24.pdf

http://english.bdi.eu/#/article/news/robust-economy-no-cause-for-complacency/

https://www.nao.org.uk/wp-content/uploads/2018/06/Investigation-into-the-governments-handling-of-the-collapse-of-Carillion.pdf