(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2010) Abeykoon, A.M.K.C.K.; Fonseka, R.M.; Paththinige, S.; Weerasinghe, K.W.L.K.
(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2008) Paththinige, S.S.; Upashantha, .P.S.G.; Ranaweera Banda, R.M.; Fonseka, R.M.
