Thilakarthne, N.S.; Weerakkody, W.J.S.K.; Wijesundara, D.S.A.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Karunarathne, S.B.; Weerakkody, W.J.S.K.; Rajapakshe, H.A.; Adikari, A.M.K.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka, Makandura, 2005)
Rathnayaka, L.A.; Weerakkody, W.J.S.K.; Kumara, N.K.V.M.R.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2006)
Karunarathne, M.M.K.; Weerakkody, W.J.S.K.; Wijesundara, D.S.A.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2006)
Rathnayake, R.M.S.J.; Dissanayake, D.M.P.S.; Weerakkody, W.J.S.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Udayanganei, W.N.; Tennakoon, N.A.; Weerakkody, W.J.S.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Somasiri, A.E.T.B.; Zuhry, A.L.M.; Weerakkody, W.J.S.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Sampath, V.P.S.; Zuhry, A.L.M.; Weerakkody, W.J.S.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)
Siriwardana, N.S.B.; Zuhry, A.L.M.; Weerakkody, W.J.S.K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2013)