and S.S. Paliyal, Upinder Sharma. “Effect of Long-Term Use of Fertilizers and Organics on Phosphorus Dynamics in Rainfed Maize-Wheat Cropping System”. Journal of the Indian Society of Soil Science, vol. 62, no. 3, Dec. 2014, https://epubs.icar.org.in/index.php/JISSS/article/view/45543.