Suharyadi, Heru, Tiara Juniar Soewardi, Samatha Michelle Frampton, Fadhilah Afifah, and Christopher Christopher. 2024. “Resource Valuation of Kalilingseng-Cave Manganese Mining Site As a Tourist Destination Using the Travel Cost Method”. Indonesian Journal of Innovation Studies 25 (4), 10.21070/ijins.v25i4.1300. https://doi.org/10.21070/ijins.v25i4.1300.