Undugoda, L.J.S., Department of Botany, Faculty of science, University of Kelaniya, Kelaniya, Sri Lanka
Upali , M.M.R., Department of Environmental Management, Rajarata University, Mihintale, Sri Lanka
Upali , M.M.R., Department of Environmental Management, Rajarata University, Mihinthale, Sri Lanka
Upamali, P.A.T., Faculty of Applied Sciences, Rajarata University of Sri Lanka, Mihintale, Sri Lanka
Upasiri, I.R., Department of Civil Engineering, Faculty of Engineering, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
Upeka, S.A.C., Faculty of Science and Technology, Uva Wellassa University, Badulla, Sri Lanka
Uyanage, J. A., Department of Chemistry, University of Kelaniya, Sri Lanka

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