Tan, J.S. <br/><br/>
Mathematics Challenging Problems : primary 6 

 - Singapore :  System Publishing House,  1991. 
 - 99p.;  27cm 
<br/><br/><label>ISBN: </label>981-3011-25-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics Grade 6<br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510.07  / TAN