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Suranjan Priyanath, Hunuwala Malawarage and Premaratne, S.P. and Yoosuf, Amina and Maurice, D. (2018): Technical Efficiency for Tea Smallholder Farmers under UTZ Certification System in Sri Lanka: A Stochastic Frontier Approach. Published in: SEISENSE Journal of Management , Vol. 2, No. 1 (30 May 2018): pp. 1-19.
