Febiyola Valentina Lumbanraja, Hastuti Hastuti. Analysis of Tourism Potential in the Toba Caldera Geopark for the Development of the Ambarita–Tuktuk–Tomok Geosite and the Batak Museum Simanindo–Batuhoda Geosite . IJHESS [Internet]. 2025 Feb. 25 [cited 2026 Apr. 18];4(4). Available from: https://ijhess.com/index.php/ijhess/article/view/1508