Ekanayake, N.R.C.D.B.; Amarasinghe, K.G.A.P.K.; Gajanayake, B.; Ranasinghe, C.S.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Udadeniya, U.V.P.N.; Ranasinghe, C.S.; Abeysinghe, D.C.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Wickramasinghe, A.S.M.P.M.; Ranasinghe, C.S.; Abeysinghe, D.C.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Kadugammulla, B.P.; Ranasinghe, C.S.; Abeysinghe, D.C.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Jayasundara, J.M.N.S.; Ranasinghe, C.S.; Fernandopulle, M.N.D.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)