"Yeo, Dr Joseph" <br/><br/>
New Syllabus Maths Work Book-1  7th Edition 

 - Karachi  ,Oxford University Press  2018 
 - 219 
<br/><br/><label>ISBN: </label>9780199407446 
<br/><br/><label>Dewey Class. No.: </label>510  / 1208-T