http://www.cer.org.uk/sites/default/files/pb_eurasian_IB_16.3.17_0.pdf
https://www.brookings.edu/articles/heres-why-us-africa-trade-under-agoa-has-been-successful-for-some-countries-but-not-others/
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/637748/Future_customs_arrangements_-_a_future_partnership_paper.pdf
https://www.africantraderemedies.com/opinions/the-squeeze-can-trade-law-preserve-the-juice-in-south-africas-citrus-fruits/