Perera, K.N.S.; Herath, H.M.N.B.; Attanayaka, D.P.S.T.G.; Perera, S.A.C.N.(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2016)
Gunarathna, H.A.Y.R.; Karunarathne, S.A.; Basnayake, B.F.A.; Sangeetha, T.; Galagedera, L.W.(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2010)