[1]
-, M. et al. 2022. Groundwater Potential and Threats in Karst Topography, Ponjong District, Gunung Kidul Indonesia. Sumatra Journal of Disaster, Geography and Geography Education. 6, 1 (Jul. 2022), 21–24. DOI:https://doi.org/10.24036/sjdgge.v6i1.385.