Ulfa, Uli, et al. “Subsurface Lithology Modelling of Landslide-Prone Areas in Sriharjo, Bantul Using the Geoelectrical Method”. RSF Conference Series: Engineering and Technology, vol. 4, no. 1, Oct. 2025, pp. 274-83, doi:10.31098/cset.v4i1.1044.