Mohamad, Habib Musa, et al. “Effect of Eco-Processed Pozzolan (EPP) Mixed With Calcium Oxide to Dry Density and Physicochemical of Peat Soil”. Civil Engineering Journal, vol. 9, no. 7, July 2023, pp. 1697-08, doi:10.28991/CEJ-2023-09-07-011.