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Singh, R.P. and Muthuraj, M. 2013. A Test for Relative Efficiency of Farmers Cultivating Groundnut in Tamil Nadu: A Profit Function Approach. Arthshastra Indian Journal of Economics & Research. 2, 1 (Feb. 2013), 16–21. DOI:https://doi.org/10.17010/aijer/2013/v2i1/54500.