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)
Madhushani, R.D.T.D.; Athauda, A.M.T.P.; Wijeyewardena, H.M.S.L.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Amanullah, M.K.M.; Fernanado, M.T.N.; Athauda, A.M.T.P.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Yatawatte, H.S.; Gamage, H.D.H.; Kariyawasam, K.A.H.; Ekanayaka, W.H.H.; De Silva, W.S.D.; Gunawardana, M.M.D. De S.(Faculty of Applied Sciences, Wayamba University of Sri Lanka:Kuliyapitiya, 2011)
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)
Gamhewage, B.; Jayasinghe-Mudalige, U.K.; Edirisinghe, J.C.; Mendis, M.S.S.; Perera, D.A.M.; Udugama, J.M.M.; Herath, H.M.L.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Sagarika, P.L.T.; Mohotti, K.M.; Gajanayake, K.G.M.C.P.B.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2006)