“The Effect of Adding Lime And Rice Husk Ash on The Cbr Value of Expansive Soil in The Purwodadi Area, Grobogan Regency, Central Java”, Technema, vol. 1, no. 1, pp. 75–87, Mar. 2026, Accessed: Sep. 17, 2026. [Online]. Available: https://sovereignresearch.org/technema/article/view/304