Damayanti, A., Akmal Hidayat, M.F., Syamsuddin, R.P. and Adhanto, D.H. 2025. Use of the TPI and TWI Methods for Identifying Karst Dolines in Purwosari District, Gunungkidul Regency, Indonesia. Forum Geografi. 39, 1 (Apr. 2025), 89–101.