Saraswat, Pankaj Kumar, Banshidhar Chaudhary, S.S. Rathore, and Ashu Singh Bhati. 2016. “Gypsum and Green Manuring Influence Soil Sodicity and Mustard Productivity under Semi-Arid Conditions of Rajasthan”. Annals of Agricultural Research 37 (1). https://epubs.icar.org.in/index.php/AAR/article/view/57899.