A C Ooi
Limestone resource investigation of part of Gunong Lang and Gunong Terendum Keramat Pulai Perak - MX(N) 1/1979 - Ipoh Perak Jabatan Penyiasatan Kajibumi Malaysia 1978 - ill:15p. 29.8 cm
Limestone resource investigation of part of Gunong Lang and Gunong Terendum Keramat Pulai Perak - MX(N) 1/1979 - Ipoh Perak Jabatan Penyiasatan Kajibumi Malaysia 1978 - ill:15p. 29.8 cm