Dhammika, K.A.S.; Ahmad, F.B.; Sam, T.L.(Department of Business Management, Faculty of Business Studies and Finance, Wayamba University of Sri Lanka. Kuliyapitiya, 2012)
Ranasinghe, R.G.S.M.; Edirisinghe, J.C.; Ratnayake, R.H.M.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Bandaranayke, H.M.S.M.; Ratnayake, R.H.M.K.; Edirisinghe, J.C.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Dissanayake, K.M.R.; Rodrigo, V.H.L.; Balasooriya, B.M.D.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2006)
Perera, J.K.C.G.K.; Ramanayake, S.M.S.D.; Attanayaka, D.P.S.T.G.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2006)
Jayasundara, J.M.N.S.; Ranasinghe, C.S.; Fernandopulle, M.N.D.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
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)