Sarkar, A.K., and S.N. Pandey. “A Study of the Soil Characteristics and Estimated Crop Yields of the Upper Damodar ’Valley Area (Soil Interpretation) ”. Journal of Soil and Water Conservation, vol. 17, no. 1 & 2, Aug. 2022, https://epubs.icar.org.in/index.php/JSWC/article/view/127238.