Joanes Muda,Fredolin Javino,Alexander Yan Sze Wah <br/><br/>
Soil geochemical survey in the Sonsogon Suyup area Bengkoka block Northern Sabah : RAK (E6) 

 - JMG.SB/MM 98/01 
 - Kuala Lumpur  Jabatan Mineral Dan Geosains Malaysia  1998 
 - ill:69p. 29.8 cm  Geological map of the Sonsogon Suyad area Bengkoka block northern Sabah,Soil samples location map, Sonsogon Suyap, area Bengkoka block northern Sabah,Rock samples location map sonsogon Suyad area Bengkoka block northern Sabah