Leong, S. <br/><br/>
"Mathematics thinking skills & heauristics: workbook for primary levels, level 4" 

 - Singapore  Singapore Asian Publication  2011 
 - 62 
<br/><br/><label>ISBN: </label>13: 978-981-4347-93-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>T  510  L554m