., Indrayani Indrayani, Andi Herius, Daiyan Saputra, and Al Muhammad Fadi. “Analysis of The Effect Of The Addition of Fly Ash and Petrsoil on The Soil Shear Strength of The Swamp Area”. Indonesian Journal of Environmental Management and Sustainability 4, no. 1 (March 29, 2020): 10-13. Accessed April 19, 2026. https://www.ijoems.com/index.php/ijems/article/view/102.