Subramaniam, V.S. <br/><br/>
Mathematics - Grade 9 :  Explanations, Exercises and Answers. 

 - 1st Ed. 
 - Jaffna :   Sri Lanka Book Depot,   2018. 
 - iv, 247 p. 
<br/><br/><label>ISBN: </label>9789557051321 
<br/><br/><label>Dewey Class. No.: </label>510  / SUB