Ooi, A.C.
A limestone investigation of Gunong Tasek and part of the eastern portion of Gunong Lang. (RAK F2) - MX(N) 25/1978 - Ipoh, Perak: Jabatan Penyiasatan Kajibumi Malaysia, - ill:19p. 29.8 cm
A limestone investigation of Gunong Tasek and part of the eastern portion of Gunong Lang. (RAK F2) - MX(N) 25/1978 - Ipoh, Perak: Jabatan Penyiasatan Kajibumi Malaysia, - ill:19p. 29.8 cm