Pokhriyal, T. C., and G. P. Mathani. “Techniques and Approaches to Utilize Nitrogen Fixing Systems in Forestry Plantation Programmes”. Indian Forester 115, no. 3 (March 1, 1989): 136–158. Accessed December 4, 2025. http://indianforester.co.in/index.php/indianforester/article/view/9009.