“Geohazard Risk Management on Geotourism, Case Study: Pindul Cave, Gunung Kidul - Yogyakarta” (2021) Proceedings of the International Conference of Geological Engineering Faculty, 1(1), pp. 10–17. Available at: https://www.proceedings.tiikmpublishing.com/index.php/icgef/article/view/752 (Accessed: 4 February 2026).