"Seng, Teh Keng" <br/><br/>
New Syllabus D Mathematics Work Book 3 (6th Ed.) 

 - Oxford  Oxford Universty Press  2008 
 - 177 
<br/><br/><label>ISBN: </label>0195979619 
<br/><br/><label>Dewey Class. No.: </label>510  / T533