Abeyrathna, D.M.N.D.; Jayasekera, S.J.B.A.; Banda, Gunarathna, R.M.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Godagampala, D.G.A.P.; Jayasekera, S.J.B.A.; Banda, Gunarathna, R.M.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Liyanage, G.L.V.M.; Pathirana, S.P.G.S.; Rankoth, L.M.; Wickramasinghe, H.K.J.P.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)