Nik Hashim Mustapha,  <br/><br/>
Peruntukan sumber asli 

 - 172 pages :   illustrations ;   22 cm 
<br/><br/><label>ISBN: </label>9836215174 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural resources
<br/><br/><label>Dewey Class. No.: </label>333.7