Nurfaradila, Fina, Eleonora Agustine, Sartono, Amira Sasanti Nugroho, and Krishna Agra Pranatikta. 2025. “Physicochemical and Mineralogical Characterization of Ciuyah Mud Volcano: Rare Earth Elements and Salt Minerals for the Advanced Materials Industry, Indonesia”. Spektra: Jurnal Fisika Dan Aplikasinya 10 (2):87-100. https://doi.org/10.21009/SPEKTRA.102.02.