Thakur, Rajesh Kumar <br/><br/>
Speed mathematics 
Rajesh Kumar Thakur 
 - 1st ed 
 - Delhi  Rupa publications india  2018 
 - 270 p. 
<br/><br/><label>ISBN: </label>9789353040895 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics<br/>Speed maths
<br/><br/><label>Dewey Class. No.: </label>513.9  / THA