HATTANGADI AJAY <br/><br/>
MENTAL CALCULATION SIMPLIFIED MENTAL CALCULATION SIMPLIFIED 

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 - VISAKHAPATNAM  LUCID  2010 
 - 138 
<br/><br/><label>Subjects--Topical Terms: </label><br/>REASONING MENTAL 
<br/><br/><label>Dewey Class. No.: </label>371.26 HAT  / HAT