P C Aw
Potential of clay sand and rock based industries in Peninsular Malaysia - IM 9/1981 - Ipoh Perak Jabatan Penyiasatan Kajibumi Malaysia 1981 - ill:19p. 29.9 cm
Potential of clay sand and rock based industries in Peninsular Malaysia - IM 9/1981 - Ipoh Perak Jabatan Penyiasatan Kajibumi Malaysia 1981 - ill:19p. 29.9 cm