Suharyadi, Heru, Tiara Juniar Soewardi, Samatha Michelle Frampton, Fadhilah Afifah, and Christopher Christopher. “Resource Valuation of Kalilingseng-Cave Manganese Mining Site As a Tourist Destination Using the Travel Cost Method”. Indonesian Journal of Innovation Studies 25, no. 4 (September 24, 2024): 10.21070/ijins.v25i4.1300. Accessed October 16, 2024. https://ijins.umsida.ac.id/index.php/ijins/article/view/1300.