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1. Homeschooling & Educational resources---homeschooling.itruths.com
   Know more about Homeschooling & Educational resources
   2006-09-21 to books, catholic, christian, curriculum, education, elementary, free, homeschooling, learning, nursery, online, program, training, tutor by gwydion1a78
2. Elementary Calculus---www.math.wisc.edu.nyud.net
   Elementary Calculus: An Approach Using Infinitesimals
   2005-11-27 to calculus, elementary, free, textbook by MarkTag.com

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