Weerakoon, W.M.C.S.; Gajanayake, K.G.M.C.P.B.; Jayasinghe-Mudalige, U.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2006)
Senanayake, S.M.S.D.; Karunarathne, K.H.M.I.; Wickramasinghe, H.K.J.P.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Rathnayake, R.M.C.P.; Perera, W.G.S.; Dassanayake, E.M.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2006)
Rangana, S.H.C.S.; Basnayake, B.M.V.S.; Perera, W.G.S.; Dassanayake, E.M.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
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)
Pathirawasam, C.; Weerakoonbanda, Y.K.(Department of Business Management, Faculty of Business Studies and Finance, Wayamba University of Sri Lanka. Kuliyapitiya, 2010)
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)
Dulshani, L.A.M.N.; Ranaweera, B.; Karunarathne, K.H.M.I.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Nirosha, S.F.; De Silva, S.N.T.; Attanayake, D.P.S.T.G.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2006)