A., T. Listyani R., and Ign. Adi Prabowo. “Recharge Zone of Shallow Groundwater at Southeastern Part of Kulon Progo District Area Based on Groundwater Facies”. International Journal of Economic and Environmental Geology 13, no. 4 (December 26, 2022): 10–15. Accessed February 23, 2025. http://econ-environ-geol.org/index.php/ojs/article/view/46.