"Leng, Ho Peck" <br/><br/>
International Lower Secondary Science workbook 1 

 - Karachi  THE CITY SCHOOL,Marshall Carvendish education  2014 
 - 144 
<br/><br/><label>ISBN: </label>9789812808134 
<br/><br/><label>Dewey Class. No.: </label>500  / T489