Safreen, J.M.; Shanthasiri, J.G.; De Silva, S.N.T.; Fernando, C.A.N.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Satharasinghe, S.; Bandupriya, H.D.D.; Vidhanaarachchi, V.R.M.; De Silva, S.N.T.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Perera, K.G.T.T.; De Silva, D.P.D.C.; Rathnayake, N.R.M.K.N.D.; De Silva, S.N.T.; Senaratne, S.G.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Nirosha, S.F.; De Silva, S.N.T.; Attanayake, D.P.S.T.G.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2006)