Tennent Ahai ,Victor Hon
Orofress report follow up geochemical exploration in the Ladang Semantan area Sarawak - JMG Sarawak - Ipoh Perak Jabatan Penyiasatan Kajibumi Malaysia 1989 - ill:18p. 29.8 cm
Orofress report follow up geochemical exploration in the Ladang Semantan area Sarawak - JMG Sarawak - Ipoh Perak Jabatan Penyiasatan Kajibumi Malaysia 1989 - ill:18p. 29.8 cm