Ooi, A. C. Limestone resource investigation of Gunong Ginting, Perak / by A. C. Ooi - Ipoh: Jabatan Penyiasatan Kajibumi, 1980 - 31 p. - Report of the Industrial Minerals Division; no.Im 7/1980 . Subjects--Topical Terms: Limestone--PerakInvestigative reporting--Perak