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)
Gunathilaka, K.A.K.M.M.; Chandrapala, A.G.; Silva, S.H.S.A. De.; Abeysingha, N.S.(Faculty of Agriculture - Rajarata University of Sri Lanka, 2011-09-16)