Tharindi, P.W.M.; Balasooriya, W.K.; Suganthan, B.; Vivehanthan, K.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)
Balasooriya, B.L.W.K.; Suganthan, B.; Vivehananthan, K.; Gunawardana, M.M.; Tharindi, P.W.M.(Senate Research and Higher Degrees Committee, Wayamba University of Sri Lanka, 2017)