Neranjika, V.P.M.; Abeynayake, N.R.; Fernando, M.T.N.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Dassanayake, H.P.C.M.; Ranawana, S.S.E.; Abeynayake, N.R.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Bulathsinhala, B.B.M.; Rathnayake, R.M.G.K.B.; Abeynayake, N.R.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Jayawardene, G.M.M.U.; Athauda, A.M.T.P.; Abeynayake, N.R.; Herath, H.M.T.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Rathnayake, B.M.D.I.; Athauda, A.M.T.P.; Abeynayake, N.R.; Patale, M.A.B.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Nayakarathna, N.M.S.K.; Athauda, A.M.T.P.; Abeynayake, N.R.; Anjalee, G.H.I.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Subasinghe, S.A.M.S.; Abeynayake, N.R.; Shyamale, H.W.; Wellala, N.N.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)