Umam, R. 2026. Combining Lithium Isotope Systematics, Stable Isotopes, and Major Elements as a Powerful Tool for Detection of the Slab-Dehydrated Fluids in Southwestern Japan. Indonesian Journal on Geoscience. 13, 3 (Aug. 2026), 393–407. DOI:https://doi.org/10.17014/ijog.13.3.393-407.