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), pp. 235–253. doi: 10.18844/gjbem.v11i3.4694.