Jayasingha, P., R. A. .L. Osborne, and R. E. Pogson. “Sthreepura Cave at Kiriwanagama, South Central Sri Lanka: A Network Cave in Saprolite and Proterozoic Quartzite”. Acta Carsologica, vol. 47, no. 2-3, Sept. 2018, doi:10.3986/ac.v47i2-3.4301.