1. Galapagos National Park, Ministry of Environment (2011) Annual report of Galapagos immigration. Galapagos, Ecuador
2. National Congress (1998) Special law for Galapagos province. Quito, Ecuador
3. National Institute of Statistics and Censuses (2005–2006) Living conditions survey
4. National Institute of Statistics and Censuses (2009a) Living conditions survey of Galapagos
5. National Institute of Statistics and Censuses (2009b) Annual hospital discharge