Koondhar, M.A., Li, H., Joyo, M.A. and Ahsan, F. 2021. Impact of land fragmentation on rice production efficiency, Comparative study of upper and Middle Sindh Province of Pakistan. Global Journal of Business, Economics and Management: Current Issues. 11, 3 (Nov. 2021), 235–253. DOI:https://doi.org/10.18844/gjbem.v11i3.4694.