Wijerathna, M.M.M.B.; Jayathilake, Y.M.C.D.; Weerasinghe, W.A.D.S.S.; Bandaranayake, C.M.; Perera, G.A.K.S.(Faculty of Applied Sciences, Wayamba University of Sri Lanka, Kuliyapitiya, 2016)
Sathiyakumar, S.; Samarakoon, K.W.; Jayasekera, S.J.B.A.; Ranasinghe, P.; Dharmadasa, R.M.(Faculty of Agriculture and Plantation Management,Wayamba University of Sri Lanka, Makandura, 2016)