Senanayake, R.M.N.H.; Herath, H.M.V.G.; Wickramesinghe, I.P.; Udawela, U.A.K.S.; Sirisena, D.N.(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2017)
Premalatha, M.G.S.; Wahundeniya, K.B..; Weerakkody, W.A.P.; Wicramathunga, C.K.(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2006)