
https://ustr.gov/sites/default/files/2019_National_Trade_Estimate_Report.pdf

https://www.opendemocracy.net/es/democraciaabierta-es/diplomacia-ciudadana-para-la-relacion-con-brasil/

https://www.sussex.ac.uk/webteam/gateway/file.php?name=briefing-paper-1.pdf&site=18