Naibaho, Betty B.S., and Shew Jiuan Su. 2025. “Strengthening Collaborative Governance: Implementing the Pentahelix Approach to Address Challenges in the Toba Caldera UNESCO Global Geopark, Indonesia”. Geoconservation Research 8 (1). https://doi.org/10.57647/j.gcr.2025.0801.02.