"Seng, Teh Keng" <br/><br/>
New Syllabus D Mathematics - 4 (6th Ed.) 

 - Karachi  Oxford Universty Press  2008 
 - 380 
<br/><br/><label>ISBN: </label>0195979589 
<br/><br/><label>Dewey Class. No.: </label>510  / 1090-T