https://theconversation.com/migracion-expulsion-y-desplazamiento-asi-ha-sido-la-diaspora-palestina-215941
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/866744/CCS0120013106-001_The_UKs_Points-Based_Immigration_System_WEB_ACCESSIBLE.pdf
https://www.brookings.edu/opinions/venezuelas-refugee-crisis-will-exceed-syrias-we-must-help/?utm_campaign=Brookings%20Brief&utm_source=hs_email&utm_medium=email&utm_content=60754413