The geology and mineral resources of the Grik area, Upper Perak - Jones, C. R.; Malaysia. Jabatan Penyiasatan Kajibumi (Ipoh : Geological Survey Headquarters, 1970)
Coloured geological map and another sheet showing three coloured geological sections across parts of the area are contained in the pocket attached inside the back cover
Keywords: Geology -- Perak; Mines and mineral resources -- Perak