Singh, Baljit, Sunpreet Singh, and Smriti Chaudhary. 2021. “Physico-Chemical Properties and Fractions of Organic Carbon and Nitrogen in the Soil under Twenty-Year-Old Tree Species”. Indian Journal of Agroforestry 23 (2). https://epubs.icar.org.in/index.php/IJA/article/view/119674.