T. Suntharalingam
Upper Palaeozoic Stratigraphy of The Area West of Kampar, Perak : RAK (F7) - Bulletin No.1 - Geological Society of Malaysia February 1968, pp. 1-15
Upper Palaeozoic Stratigraphy of The Area West of Kampar, Perak : RAK (F7) - Bulletin No.1 - Geological Society of Malaysia February 1968, pp. 1-15