Rajapaksha, E.R.G.I.C; Seneviratne, K.A.C.N.; Yakandawala, K.; Seneviratne, G.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka,:Makandura, 2018)
Jayathilake, P.K.S.; Reddy, I.P.; Srihari, D.; Reddy, K.R.; Neeraja, G.(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2003)
Hitihamu, S.; Lurdu, M.D.S.; Hector Kobbekaduwa Agrarian Research and Training Institute(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 2015)
Tharindi, P.W.M.; Balasooriya, W.K.; Suganthan, A.B.; Vivehananthan, K.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka:Gonawila, 2016)
Sunil, A.J.Y.A.D.; Balasooriya, B.L.W.K.; Amarawansa, R.P.U.L.; Dandeniya, W.S.; Dharmakeerthi, R.S.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka:Makandura, 2018)
Gunawardana, W.D.T.; Ranasingha, A.S.Y.P.; Wijesooriya, H.D.S.N.; Gajanayake, B.(Faculty of Agriculture and Plantation Management, Wayamba University of Sri Lanka:Makandura, 2018)