http://publications.iom.int/system/files/pdf/wmr_2018_en.pdf
http://ourglobalfuture.com/wp-content/uploads/2017/05/Global-Future-The_case_for_immigration.pdf
https://facesofconflict.crisisgroup.org/atrapados-en-el-tapon-migrantes-y-traficantes-en-el-darien/?lang=es