Leng Peck, Ho <br/><br/>
International lower secondary science. 

 - Islamabad.  Marshall cavendish education.  2019. 
 - 150 pages;  illustration;  27 cm. 
<br/><br/><label>ISBN: </label>9789812808141 
<br/><br/><label>Dewey Class. No.: </label>TR-500  / LEN-I