P C Aw
Kaolin mining and its future prospects in peninsular Malaysia - IM 14/1980 - Ipoh Perak Jabatan Penyiasatan Kajibumi Malaysia 1980 - ill:10p. 29.8 cm
Kaolin mining and its future prospects in peninsular Malaysia - IM 14/1980 - Ipoh Perak Jabatan Penyiasatan Kajibumi Malaysia 1980 - ill:10p. 29.8 cm