Sharma, N. K., H. P. Singh, and K. S. Dadhwal. “Nutrient Returns through Litter Fall in <I>Populus deltoides< I> Based Agroforestry System”. Indian Forester 126, no. 3 (March 1, 2000): 295–299. Accessed June 4, 2026. http://indianforester.co.in/index.php/indianforester/article/view/3165.