Imnawapang Longkumer, B., and M. Giribabu. “Trends on Rice Production and Productivity in India and the North East Region : Issues and Challenges”. Arthshastra Indian Journal of Economics & Research, vol. 8, no. 3, June 2019, pp. 42-52, doi:10.17010/aijer/2019/v8i3/146037.