"Lee Peng Yee" <br/><br/>
New Syllabus Mathematics Book-4 (5Th Edn) 

 - Karachi  Oxford University Press  2007 
 - 346 
<br/><br/><label>ISBN: </label>0195799286 
<br/><br/><label>Dewey Class. No.: </label>510  / 1055-T