Identification of Fault Structures Using First Horizontal Derivative and Second Vertical Derivative Analysis of Gravity Data in the Sumedang Area, West Java. EKSAKTA [Internet]. 2026 Aug. 30 [cited 2026 Oct. 12];27(04):637-58. Available from: https://eksakta.ppj.unp.ac.id/index.php/eksakta/article/view/698