Paranawithana, D.R; Atapattu, N.S.B.M; Senaratna, D.; Ranasinghe, H.R.M.A.K.K; Weerasinghe, W.M.C.B(Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2009-09-10)
Senaratna, D.; Samarakone, T; Atapattu, N.S.B.M; Paranawithana, D.R; Chandrasiri, W.C.J(Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2009-09-10)