Ahmad Yusof,  <br/><br/>
Bentuk dan ruang / 
Ahmad Yusof 
 - 28 pages :   illustrations ;   25 cm 
 - Siri fakta-fakta matematik .
 - Siri fakta-fakta matematik .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>510