Ratnasooriya, W.D., Department of Zoology, University of Colombo, Sri Lanka.
RATNASOORIYA,, W. D., Department of Zoology and *Department of Chemistry, University of Colombo, Colombo 3, Sri Lanka
Ratnassoriya, W. D., Department of Zoology, University of Colombo, Colombo 03
Ratnatilleke , A., Department of Chemistry, University of Kelaniya, Dalugama, Sri Lanka
Ratnaweera, D., Department of Chemistry, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
Ratnaweera, D.R., Department of Chemistry, University of Sri Jayewardenepura, Sri Lanka
Ratnaweera, P., Department of Zoology and Environment Sciences, University of Colombo, Sri Lanka
Ratnayake, H.U.W.
Ratnayake , A.S., Department of Applied Earth Sciences, Uva Wellassa University, Badulla, Sri Lanka
Ratnayake , A.S., Department of Applied Earth Sciences, Uva Wellassa University, Sri Lanka
Ratnayake, A.S., Department of Applied Earth Sciences, Faculty of Applied Sciences, Uva Wellassa University, Badulla, Sri Lanka
Ratnayake, A.S., Faculty of Science and Technology, Uva Wellassa University, Badulla, Sri Lanka
Ratnayake, B.R.M.N., Department of Marketing Management University of Sri Jayewardenepura, Sri Lanka
Ratnayake, B.R.M.N., Department of Marketing, University of Sri Jayewardenapura, Sri Lanka
Ratnayake, B.R.M.N., Lecturer, Dept. of Marketing Management, University of Sri Jayewardenepura, (Sri Lanka)
Ratnayake, CD, Faculty of Medical Sciences , University of Sri Jayewardenepura
Ratnayake, Iraj
Ratnayake , M. D., Department of English Language Teaching, Faculty of Humanities and Social Sciences,University of Sri Jayewardenepura
Ratnayake, M. D., Department of English Language Teaching, University of Sri Jayewardenepura, Sri Lanka
Ratnayake, M.P., University of Visual and Performing Arts Colombo
Ratnayake, N., Department of Civil Engineering, University of Moratuwa
Ratnayake, N., IUCN - The World Cnservation Union
Ratnayake , N.P., Ocean University, Mattakkuliya, Sri Lanka
Ratnayake, P. G. D., 0pen University of Sri Lanka
Ratnayake, P. Upali, Sri Lanka Tourism Development Authority, Sri Lanka.

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