Rupanjali, A.P.D.; Jayasundera, J.M.M.A.; Fernandopulle, M.N.D.; Marikkar, J.M.N.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2006)
Subasinghe, M.R.V.N.; Amarasinghe, K.G.A.P.K.; Dharmadasa, M.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Tharangi, U.H.D.; Vivehanthan, K.; De Silva, W.H.; Fernando, C.A.N.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Abeywardana, B.G.H.; Jayasundera, S.H.; Kumara, N.K.D.C.P.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Indulgoda, I.P.M.; Loganathan, M.B.; Jayasekera, S.J.B.A.; Ranaweera, B.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2006)
Rathnasekera, U.S.; Kannangara, K.N.; Perera, P.I.P.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Sampath, V.P.S.; Zuhry, A.L.M.; Weerakkody, W.J.S.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Jayasundara, J.M.D.M.; Ranundeniya, R.M.N.S.; Lakmali, W.A.S.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)