NIRU KUMARI, C.S. SINGH, J. PRASAD, M.K. SINGH, and RAJESH KUMAR, “Influence of organic nutrient sources on productivity of rice (Oryza sativa)-based cropping systems in Jharkhand”, IJA, vol. 58, no. 3, pp. 277–281, Oct. 2001, doi: 10.59797/ija.v58i3.4211.