Hasanabba B A <br/><br/>
Recreational Mathematics Methods of Mental Mathematics (Vedic, trachtenberg and other Systems) 

 - Bengaluru  Prism Books Pvt. Ltd.  2015 
 - 223 
<br/><br/><label>ISBN: </label>9788172869076 
<br/><br/><label>Subjects--Topical Terms: </label><br/> hasanabba b a<br/> mathematics<br/> recreational<br/>mental
<br/><br/><label>Dewey Class. No.: </label>510 HAS