https://www.unodc.org/res/wdr2021/field/V2104298_Spanish.pdf
https://www.brookings.edu/essay/the-wall-the-real-costs-of-a-barrier-between-the-united-states-and-mexico/?utm_campaign=brookings-comm&utm_source=hs_email&utm_medium=email&utm_content=55521719
https://theconversation.com/como-lograr-textos-administrativos-y-juridicos-que-se-entiendan-facilmente-216295
http://www.siaarti.it/SiteAssets/News/COVID19%20-%20documenti%20SIAARTI/SIAARTI%20-%20Covid19%20-%20Raccomandazioni%20di%20etica%20clinica.pdf