Nitin Arora, Harpreet Singh. “Use of Lignin As Feasible Additive to an Expansive Soil”. International Journal of Advanced Science and Technology 29, no. 10s (June 1, 2020): 5210-5214. Accessed April 28, 2024. http://sersc.org/journals/index.php/IJAST/article/view/22163.