Tai, Dawn. <br/><br/>
Challenging 4-in-1 maths:  primary 6 / 
Dawn Tai. 
 - Singapore:  Educational Publishing House,  2010. 
 - 236 pages. 
<br/><br/><label>ISBN: </label>978981451716 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>TR 510 T129 2010