Gunasekare, M.T.K.; Ranathunga, M.A.B.; Piyasundara, J.H.N.; Upali, P.D.; Paskaradevan, R.; Kottawa Archchi, J.D.; Ranaweera, K.K.; Ariyarathna, C.; Sarathchandra, T.M.; Pallemulla, D.; Jayatilaka, M.M.; Pradeepa, N.H.L.; Tea Research Institute; TRI, Sri Lanka
(Tea Research Institute:Talawakelle, 2010)