Madhusanka, W.P.C.; Ranaweera, B.; Subashini, J.K.W.N.; Karunarathne, K.H.M.I.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka:Makandura, 2020)
Gunawardana, W.D.T.; Ranasingha, A.S.Y.P.; Wijesooriya, H.D.S.N.; Gajanayake, B.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka:Makandura, 2018)
Dilani, A.V.P.A.; Dissanayake, D.M.P.S.; Weerakkody, W.J.S.K.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka:Makandura, 2018)
Gunawardana, W.D.T.; Ranasingha, A.S.Y.P.; Wijesooriya, H.D.S.N.; Gajanayake, B.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka:Makandura, 2018)