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The political economy of development
This academic site promotes excellence in teaching and researching economics and development, and the advancing of describing, understanding, explaining and theorizing.
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Britannica The best source of encyclopedic information in English language
   
English, Mathematics and Science
BBC EDUCATION Comprehensive and clear
   
Calculator A RRojas Software tool for quantitative analysis
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National Geographic Magazine Around the world in pictures
The Exploratorium Elementary guide to how the world works
Discovery Channel Online Good basic approach to deliver knowledge
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