Aw, P. C. Kaolin investigation in Sungai Long, Cheras, Selangor / by P. C. Aw - Ipoh : Ibu Pejabat Penyiasatan Kajibumi, 1978 - 11 p. : ill. - A report of the Industrial Minerals Division; no.MX(N)13/1978 . Subjects--Topical Terms: Kaolin - SelangorInvestigative reporting--Selangor