kotadeniya, K.W.M.K.W.U.L.B.; Wanigasundara, W.A.D.P.; Ginigaddara, G.A.S.; Anuradha, J.M.P.N.(Faculty of Agriculture - Rajarata University of Sri Lanka, 2012-11-15)
Mohamed Ali, I.L.; Ginigaddara, G.A.S.; Kahandage, P.D.; Fernando, A.P.S.; Bandara, A.M.K.R.(Faculty of Agriculture - Rajarata University of Sri Lanka, 2012-11-15)