SINHA, D. K.; SINGH, K. M.; AHMAD, N.; CHAHAL, V. P.; MEENA, M. S. Natural Resource Management for Enhancing farmer’s Income: An Optimal Crop Planning Approach in Bihar. Indian J Agri Sci 2018, 88 (4), 641-646. https://doi.org/10.56093/ijas.v88i4.79147.