Harijoko, Agung, Nanda Ayu Safira Mariska, and Ferian Anggara. “Estimated Emplacement Temperatures for a Pyroclastic Deposits from the Sundoro Volcano, Indonesia, Using Charcoal Reflectance Analyses”. Indonesian Journal on Geoscience 5, no. 1 (January 18, 2018): 1–11. Accessed June 25, 2024. https://ijog.geologi.esdm.go.id/index.php/IJOG/article/view/374.