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)
Paranagama, W.D.; Horadagoda, N.U.; Rajapakse, R.P.V.J.; Faizal, A.C.M.; Dharmavardhane, I.V.P.(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1999)