S.P. Datta, B.S. Dwivedi, D. Golui, V.K. Singh, Manoj Shrivastava, Ashok Kumar, Ganpat, A. K. V. M. C. M. (2021). Effect of Long-term Integration of Sewage-Sludge and Fertilizers on Wheat Productivity, Profitability and Soil Fertility. Journal of the Indian Society of Soil Science, 69(1). https://epubs.icar.org.in/index.php/JISSS/article/view/113088