S. Maryanto, S. Hidayat, D.R. Santoso, A. Nadhir, R.P. Habsari
[No abstract available]
Brawijaya Volcano and Geothermal Research Center, University of Brawijaya, Veteran St. Malang, 65145, Indonesia; Department of Physics, Faculty of Mathematics and Natural Sciences, State University of Malang, Semarang St 5, Malang, 65145, Indonesia; Lab. of Measurement and Circuit System, Physics Department University of Brawijaya, Veteran St., Malang, 65145, Indonesia