Bunyi 

 - 22 pages :   illustrations ;   22 cm 
 - Siri gunaan tenaga di alam kita .
 - Siri gunaan tenaga di alam kita .
<br/><br/><label>ISBN: </label>9839678736 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sound - Juvenile literature.
<br/><br/><label>Dewey Class. No.: </label>541