Ling Nan Ley <br/><br/>
The detailed hydrogeological investigation of the Kuala Tatau area Bintulu division Sarawak volume 11 : (RAK E9) 

 - GSKL 037/17/205 
 - Ipoh Perak  Jabatan Penyeiasatan Kajibumi Malaysia  1990 
 - ill:272p. 29.8 cm