Hofi, Laily Nur, Sukir Maryanto, Adi Susilo, Agus Naba, Didik Rahadi Santoso, Herman Tolle, Justinus Satrio, and Emad M. H. Takla. 2026. “Structural Framework of the Nyi Sindurejo Geothermal System Revealed by Gravity Data Analysis, East Java, Indonesia”. Journal of Science and Mathematics Letters 14 (1): 69-78. https://doi.org/10.37134/jsml.vol14.1.7.2026.