B.S. MANKOTIA, J. SHEKHAR, R.C, THAKUR, and S.C. NEGl. “Effect of Organic and Inorganic Sources of Nutrients on Rice (Oryza Sativa) - Wheat (Triticum Aestivum) Cropping System”. Indian Journal of Agronomy 53, no. 1 (October 10, 2001): 32–36. Accessed June 26, 2026. https://pub.isa-india.in/index.php/ija/article/view/4830.