https://knowledge.wharton.upenn.edu/article/us-companies-react-tariffs/?utm_source=kw_newsletter&utm_medium=email&utm_campaign=2019-06-25
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
https://www.europarl.europa.eu/meetdocs/2009_2014/documents/deea/dv/2203_07/2203_07en.pdf