"DR JOSEPH YEO" <br/><br/>
MATHEMATICS WORKBOOK 1 

 - PAKISTAN  London : Ladybird, 2001.,OXFORD UNIVERSITY PRESS  2008 
 - 219 
<br/><br/><label>ISBN: </label>9780199407446 
<br/><br/><label>Dewey Class. No.: </label>510  / T-1065