W. Wilopo, R. Risanti, R. Susatio, and D. P. E. Putra, “Seawater intrusion assessment and prediction of sea-freshwater interface in Parangtritis coastal aquifer, South of Yogyakarta Special Province, Indonesia”, J. Degrade. Min. Land Manage., vol. 8, no. 3, pp. 2709–2718, Apr. 2021.