"peck, leng ho " <br/><br/>
International Lower Secondary Science Workbook 1 

 - 1st Edition 
 - Singapore;  Marshall cavendish education:  2019. 
 - 144 Pages:  28 Cm. 
<br/><br/><label>ISBN: </label>9789812808134 
<br/><br/><label>Dewey Class. No.: </label>T 500  / PEC I