MARZUKI, M., HAMIDI, M., AHADI, S., PUTRA, A., AFDAL, A., HARMADI, H., KARNAWATI, D., SUPRIHATIN, H. S., SYIROJUDIN, M. and MARSYAM, I. (2022) “ULF geomagnetic anomaly associated with the Sumatra-Pagai Islands earthquake swarm during 2020”, Contributions to Geophysics and Geodesy, 52(2), p. 185‒207. doi: 10.31577/congeo.2022.52.2.2.