V. KATYAL, S. K. SHARMA, and K. S. GANGWAR, “Stability analysis of rice (Oryza satiya)-Wheat (Triticum aestivum) cropping system in integrated nutrient management”, Indian J Agri Sci, vol. 68, no. 2, Feb. 2013, Accessed: Oct. 29, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/27299