Kusmita, Tri, Kirbani Brotopuspito, and Hetty Triastuty. “ANALISIS PARAMETER SUMBER SPEKTRAL GEMPABUMI VTA (VULKANO TEKTONIK-A) TERHADAP AKTIVITAS VULKANIK GUNUNG SINABUNG”. JOURNAL ONLINE OF PHYSICS 5, no. 1 (December 19, 2019): 18–23. Accessed March 26, 2025. https://online-journal.unja.ac.id/jop/article/view/8267.