CIA – The World Factbook
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 https://www.cia.gov/library/publications/the-world-factbook/
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provides information on the history, people, government, economy, geography, communications, transportation, military, and transnational issues for 266 world entities. |
Infoplease
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 http://www.infoplease.com/ |
reference source that combines the contents of an encyclopedia, a dictionary, an atlas, and several almanacs loaded with statistics, facts, and historical records. |
LearningExpress Library |
 http://www.learningexpresslibrary.com
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contains over 300 online academic and licensing practice tests including SAT, ACT, GRE, LSAT, Advanced Placement, civil service, military, real estate, law enforcement, citizenship, TOEFL, ESL and basic skills for elementary, middle and high school skills improvement and much more. Test preparation materials span ages from elementary through adult. This testing resource also provides instant scoring and customized feedback. |
