Harshana, W.H.I.; Nugawela, R.C.W.M.R.A.; Attanayake, D.P.S.T.G.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Pathirana, A.P.C.S.; Sumanasena, H.A.; Fernandopulle, M.N.D.; Amarasinghe, K.G.A.P.K.; Priyadarshani, K.D.N.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Dewagedara, D.M.A.E.I.; Wijesinghe, S.A.E.C.; Rathnayake, R.H.M.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Senevirathne, L.P.S.S.G.; Jayasinghe-Mudalige, U.K.; Guruge, T.P.S.R.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Siriwardhana, I.D.; Athauda, A.M.T.P.; Herath Banda, R.M.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Surige, I.A.; Guruge, T.P.S.R.; Jayasinghe-Mudalige, U.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Neranjika, V.P.M.; Abeynayake, N.R.; Fernando, M.T.N.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Wimalawansa, K.H.N.H.; Weerasinghe, K.S.; Weerakkody, W.J.S.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)