Ratnayake, S.P.Tea Research Institute; TRI, Sri Lanka2016-04-182016-04-182008Proceedings of the 216th Experiments and Extension Forum, 25th January 2008, TRI, Talawakelle, 216:p.7-29https://dl-tri.nsf.gov.lk/handle/1/1870Agricultural EconomicsTea tradeTea productionValue additionBlack tea