1. —Berger, A. R.,Dias, D. P.,Gunatillake, H. R. K., &Jayasinghe, N. R.: Preliminary observations on the structural geology of the Highland Series. - Proc. 26th Ann. Sess. Ceylon Assoc. Advmt. Sci., Pt. I, 67–68, 1970.
2. —Cooray, P. G.: The geology of the area around Rangala. - Mem. Geol. Surv. Ceylon,2, 138 pp., 1961.
3. ——: Charnockites and their associated gneisses in the Precambrian of Ceylon. - Quart. J. Geol. Soc. Lond.,118, 239–273, 1962.
4. ——: The geology of Ceylon - some recent advances in knowledge. - Proc. 20th Ann. Sess. Ceylon Assoc. Advmt. Sci. Pt. 2, 89–120, 1965.
5. ——: An introduction to the geology of Ceylon. - Natl. Museum Colombo, 324 pp., 1967.