Paulus Godwin,Alexander Yan <br/><br/>
Investigation of bentonite (montmorillonitic clay) resources in the Segama area Lahat Datu Sabah : RAK (E2) 

 - JMG.SB/IM/ 95/3 
 - Kuala Lumpur  Jabatan Penyiasatan Kajibumi Malaysia  1995 
 - ill:25p. 29.8 cm