Idarwati, Idarwati. “Endapan Batuan Volkanik Berdasarkan Data Sistem Informasi Geografi (SIG) Daerah Danau Ranau, Propinsi Sumatera Selatan”. PROMINE 3, no. 1 (August 15, 2018). Accessed May 6, 2024. https://journal.ubb.ac.id/promine/article/view/90.