El Salvador - The World Factbook
CIA - The World Factbook -- Honduras
El Salvador - New World Encyclopedia
Demographics of El Salvador - Wikiwand
Central American crisis - Wikipedia
El Salvador
El Salvador - New World Encyclopedia
Assessing the Use of Call Detail Records (CDR) for Monitoring Mobility and Displacement by Princeton School of Public and International Affairs - Issuu
El Salvador - The World Factbook
El Salvador - Wikipedia