Budiastra, A. A. Ketut, Mustaghfiri Asror, Nia Erlina, and Iwan Wicaksono. 2023. “The Effectiveness of Geopark-Based Science Learning to Increase Students’ Concern for The Local Environment and Culture the Belitung Island”. Advances in Social Sciences Research Journal 10 (5):182-97. https://doi.org/10.14738/assrj.105.14711.