Petroleum economist 
 Petroleum press services 

 - London :  Petroleum Press Bureau Ltd.,  1934- 
 - v. ;  24 cm 
<br/><br/> UKM: v.44 (1977). v.65 no.9 1997 dalam bentuk CD-ROM. Dihantar ke Koleksi Media pada 12 Nov 2015 
<br/><br/><label>ISSN: </label>0306-395X 
 = Petroleum economist Petroleum economist 
<br/><br/><label>Source: </label> University Book Store, Kuala Lumpur (langganan tahunan) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petroleum industry and trade--Periodicals