Alahapperuma, Y.B.; Vivehanthan, K.; Neththikumara, N.; Gnaneshan, S.; Dissanayake, V.H.W.; Rajapaksha, R.W.P.M.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Luphzhy, M.P.D.L.; Vivehanthan, K.; Dassanayaka, M.P.; Satharasinghe, D.C.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Tharindi, P.W.M.; Balasooriya, W.K.; Suganthan, B.; Vivehanthan, K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
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)