"Seng, Teh Keng" <br/><br/>
New Syllabus  Mathematics Book 1 (7th Ed.) 

 - Karachi  Oxford Universty Press  2018 
 - 419 
<br/><br/><label>ISBN: </label>9780199407408 
<br/><br/><label>Dewey Class. No.: </label>510  / T617