"Leng, Ho Peck" <br/><br/>
International Lower Secondary Science Work book – 1 

 - Singapore  Heineman Educational Books,Marshall Cavendish  2009 
 - 144 
<br/><br/><label>ISBN: </label>9789812808134 
<br/><br/><label>Dewey Class. No.: </label>500  / T-461