Das, Amal Chandra, and Dipankar Saha. “Non-Symbiotic Nitrogen-Fixing Bacteria Influencing Mineral and Hydrolysable Organic Nitrogen in Rhizosphere Soils of Rice (Oryza Sativa)”. The Indian Journal of Agricultural Sciences 75, no. 5 (May 5, 2005). Accessed October 27, 2025. https://epubs.icar.org.in/index.php/IJAgS/article/view/9350.