Joanes Muda
Alluvial gold exploration in the bole middle area Lahad Datu Sabah : RAK (E3) - JMG. Sabah - Ipoh Perak Jabatan Kajibumi Malaysia 1989 - ill:11p. 29.8 cm
Alluvial gold exploration in the bole middle area Lahad Datu Sabah : RAK (E3) - JMG. Sabah - Ipoh Perak Jabatan Kajibumi Malaysia 1989 - ill:11p. 29.8 cm