Ipmawan, V. L., Brotopuspito, K. S. and Triastuty, H. (2020) “Locating Tremor Source with Polarization and Semblance Methods During the 2014 Crisis Period of Raung Volcano”, Indonesian Journal on Geoscience, 7(1), pp. 41–49. doi: 10.17014/ijog.7.1.41-49.