Arifin, Yulian Firmana, Muhammad Arsyad, Jeane Monica, and Setianto Samingan Agus. “Volume Change in Compacted Claystone-Bentonite Mixtures As Affected by the Swamp Acidic Water”. Communications in Science and Technology 6, no. 2 (December 31, 2021): 80-90. Accessed January 19, 2022. https://cst.kipmi.or.id/journal/article/view/540.