PRIYANATH, Hunuwala Malawarage Suranjan; PREMARATNE, S.P.; YOOSUF, Amina; MAURICE, D. Technical Efficiency for Tea Smallholder Farmers under UTZ Certification System in Sri Lanka: A Stochastic Frontier Approach. SEISENSE Journal of Management, Multan, Pakistan, v. 1, n. 2, p. 1–19, 2018. DOI: 10.5281/zenodo.1218820. Disponível em: https://journal.seisense.com/jom/article/view/9. Acesso em: 16 nov. 2025.