Ratnayake, R. H. M. K., Department of Horticulture and Landscape Gardening, Wayamba University of Sri Lanka, Sri Lanka.
Ratnayake, R. H. M. K., Oepanment of Horticulture and Landscape Gardening, Wayamba University of Sri Lanka, Sri Lanka
Ratnayake, R. L., Department of Geography, University of Kelaniya, Sri Lanka
Ratnayake, R. M. C. S., Department of Botany, University of Kelaniya
Ratnayake , R.H.M.K., Wayamba University, Makandura, Sri Lanka
Ratnayake , R.M.C.S., University of Kelaniya, Dalugama, Sri Lanka
Ratnayake, R.M.M.A., Department of Horticulture and Landscape Gardening, Wayamba University of Sri Lanka
Ratnayake, R.R., National Institute of Fundamental Studies, Kandy, Sri Lanka
Ratnayake, T.S., NatBeHo/Nature Beyond the Horizon-The Environmental Society of Horizon campus, Malabe, Sri Lanka
Razmy, A. M., Faculty of Agriculture, University of Perdeniya
Rcdrlqo, V. H. L., Rubber Research Institute of Sri Lanka,
Rebecca, T, IWMI, Palawatte, Battaramulla
Rekha Nianthi, K.W.G., Department of Geography, University of Peradeniya, Peradeniya, Sri Lanka
Renuka , N.R.M., Department of Wildlife Conservation, Sri Lanka
Rev. Wimalaratana, W.
Rijas, M. A. M., Department of Agribusiness Management
Rismy, F.M., Department of Biotechnology, School of Science, Business Management School, Colombo.06, Sri Lanka.
Robak, E.W., University of New Brunswick, Canada
Rodrigo , H.C.I., Department of Forestry and Environmental Science, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
Rodrigo, Lakshman, Rubber Research Institute of Sri lanka
Rodrigo, R., IUCN- The World Conservation Union, Sri Lanka
Rodrigo, R.D.J., Rubber Research Institute, Agalawatta, Sri Lanka
Rodrigo, V. H. L., Rubber Research Institute of Sri Lanka
Rodrigo, V. H. L., Rubber Research Institute of Sri Lanka, Dartonfield, Agalawatta, Sri Lanka
Rodrigo, V.H.L.

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