
https://www.instituteforgovernment.org.uk/sites/default/files/publications/IfG_Brexit_customs_WEB.pdf

https://www.bloomberg.com/news/features/2017-06-02/u-k-election-brexit-tests-loyalties-in-labour-stronghold?cmpid=BBBXT060217_BIZ&utm_medium=email&utm_source=newsletter&utm_term=170602&utm_campaign=brexit

https://www.brookings.edu/blog/order-from-chaos/2021/09/23/asean-and-the-quad-strategic-impasse-or-avenue-for-cooperation/?utm_campaign=Brookings%20Brief&utm_medium=email&utm_content=162963173&utm_source=hs_email