S Senathi Rajah <br/><br/>
Magnetometer investigation of aeromagnetic anomaly 519 Ayer Hitam area Johore (RAK F1) 

 - MX (M) 3/1973 
 - Ipoh Perak  Jabatan Penyiasatan Kajibumi Malaysia  1973 
 - ill:20p. 29.8 cm