. Y, . M, Lestari US, Giyani A. Stabilization of Liang Anggang Sand with Fly Ash and Cement as Subgrade Improvement Materials. etj [Internet]. 2022 Nov. 21 [cited 2024 Jul. 22];7(11):1666-70. Available from: https://everant.org/index.php/etj/article/view/758