Widanage, R.; Chan, C.; Tsang, Y.-P.; Sipes, B.; Melakeberhan, H.; Sanchez-Perez, A. .; Mejía-Coroy, A. Enhancing Technical Efficiency and Economic Welfare: A Case Study of Smallholder Potato Farming in the Western Highlands of Guatemala. Econ. Agro-Aliment. 2022, 24.