Here's another example submitted by Steve.
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Some Comments From Visitors:
Just want to thank and congrats you beacuase this project is really noble. Thank you very much.
Diego Aguilera, Argentina
THANKS FOR ALL THE INFORMATION THAT YOU HAVE PROVIDED. IT CHANGED MY PERCEPTION TOWARD CALCULUS, AND BELIEVE ME WHEN I SAY THAT CALCULUS HAS TURNED TO BE MY CHEAPEST UNIT. THANKS ONCE AGAIN.
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