Pandey, P. C., S. P. Chaukiyal, and T. C. Pokhriyal. “Nitrogenase Activity <I>Vis-a-vis< I> Field Testing of <I>Dalbergia Sissoo Rhizobium< I> Isolates Collected from Different Sources”. Indian Forester 125, no. 2 (February 1, 1999): 219–224. Accessed July 10, 2025. https://indianforester.co.in/index.php/indianforester/article/view/5536.