W.M.G.S. Wijesooriya, H.M.T.G.A. Pitawala, N. Priyantha, E.A.N.V. Edirisinghe; Spatial and Temporal Variation of Water Quality in Groundwater Sources and Final Bottled Water Products in Sri Lanka; 9th International Symposium on Water Quality and Human Health: Challenges Ahead, PGIS University of Peradeniya; 23rd and 24th August 2024.