Kumari, R.M.P.D.; Gajanayake, K.G.M.C.P.B.; Chandrasekara, G.A.P.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Rathnasekara, G.N.C.; Gajanayake, K.G.M.C.P.B.; Abeyagunawardene, C.D.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Motha, M.R.; Gajanayake, K.G.M.C.P.B.; Sarukkali, P.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Damayanthi, K.A.I.; Edirisinghe, J.C.; Gajanayake, K.G.M.C.P.B.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Kumara, R.N.S.; Gajanayake, K.G.M.C.P.B.; Srirwardene, U.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Jayasuriya, S.H.P.; Gajanayake, K.G.M.C.P.B.; Abeysinghe, D.C.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Galagoda, R.P.W.M.R.R.K.B.; Gajanayake, K.G.M.C.P.B.; Silva, D.A.C.S.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)