Sumber asli di Malaysia 
Ministry of National Resources and Environment 
 - Putrajaya  Ministry of National Resources and Environment  2006 
 - iv,104p.  ill.  30cm 
<br/><br/><label>ISBN: </label>983429560 X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics<br/>Natural resources--Malaysia
<br/><br/><label>Dewey Class. No.: </label>333.7  / NRE