Enggong Aji,Ajon Winnie,Hilary Muyan Nicholas Thomas,Mohd Zulkiflee Che Soh,Dorani b Johari <br/><br/>
Regional geochemical survey of the Sibu and Bintutlu division Sarawak 

 - GSKL 137/1/8 
 - Kuala Lumpur  Jabatan Mineral Dan Geosains Malaysia  2000 
 - ill:28p. 29,8 cm