Singh, S. P., J.P. Singh, Amit Bhatnagar, Amit Kumar, Ajit Yadav, Gaurendra Gupta, Usha Kumari, and Gaurav Verma. 2018. “Yield, Nutrient Uptake and Economics of Soybean under Different Weed Management Practices”. Annals of Agricultural Research 38 (4). https://epubs.icar.org.in/index.php/AAR/article/view/78997.