Devangsari I, Purwanto B. Potential of Trace Elements in Volcanic Highlands: Geogenic Sources and Their Implications for Productivity. actasolum [Internet]. 5Oct.2025 [cited 20Oct.2025];3(3):167-78. Available from: http://jtam.ulm.ac.id/index.php/actasolum/article/view/3443