1975 production statistics for crush rocks, bricks, and sand and gravel in Peninsular Malaysia - Aw, P. C.; Ong, W. S.; Malaysia. Jabatan Penyiasatan Kajibumi (Ipoh : Ibu Pejabat Penyiasatan Kajibumi, 1976)
Keywords: Rocks -- Malaysia; Bricks -- Malaysia; Sand -- Malaysia; Malaysia -- Statistics