Botheju, Shermila, et al. “Geo-Spatial Distribution of Hydrological Nephrotoxic Characteristics in Kalawewa and Tissawewa Reservoirs in Anuradhapura, Sri Lanka”. EQA - International Journal of Environmental Quality, vol. 46, Jan. 2021, pp. 13-24, doi:10.6092/issn.2281-4485/12298.