Aw, P. C. Investigation of raw materials for wall and floor tile production in the Sungai Petani area, Kedah / by P. C. Ooi - Ipoh : Ibu pejabat Penyiasatan Kajibumi, 1978 - 16 p. : ill. - A report of the Industrial Minerals Division; no.MX (N)6/1978 . Subjects--Topical Terms: Raw materials--KedahTile industry--Kedah