A.C. OOI
Sand investigation in the district of Kuantan Pahang a preliminary report : RAK (C3) - C 553 OOI - IM 4/1981 - Ipoh Perak Jabatan Penyiasatan Kajibumi Malaysia 1981
Sand investigation in the district of Kuantan Pahang a preliminary report : RAK (C3) - C 553 OOI - IM 4/1981 - Ipoh Perak Jabatan Penyiasatan Kajibumi Malaysia 1981