Prasad, K, and A Rafey. 2012. “Effect of Integrated Weed Management on Weed Growth, Nutrient Uptake, Economics and Energetics in Rainfed Upland Rice (Oryza Sativa)”. The Indian Journal of Agricultural Sciences 65 (4). https://epubs.icar.org.in/index.php/IJAgS/article/view/18209.