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Subject
Utilities and Communication
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Institution
Princeton
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Year
2007
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1. El Salvador household amenity data from 2007 census
2007. Dirección General de Estadística y Censos (DIGESTYC). Shapefile containing 2007 household amenity data for El Salvador, including utility, sanitation, and appliance information, displayed at municipali...
2. Global 2G mobile coverage, 2007
2007. Collins Bartholomew Ltd. Representation of the area covered by GSM (2G) mobile communications around the world as of first quarter 2007.
3. Global 3G mobile coverage, 2007
2007. Collins Bartholomew Ltd. Representation of the area covered by 3G mobile communications around the world as of first quarter 2007.