The world is about to end !!! It took millions of years for humans to go from appearing to 1 billion people, but only 200 years to go from 1 billion to 8 billion. Human beings have been born for so long, Why did industrialization occur only in the past two hundred years ? !

Worldwide Integral Calculus  With Infinite Series by David B. Massey

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Worldwide Integral Calculus  With Infinite Series by David B. Massey
ISBN-13 : 9780984207152
Publisher : Worldwide Center of Mathematics; 1st edition (January 1, 2009)
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