Christiono, C., M. Fikri, and S. Abduh. “Comparative Study of HMM and BPNN in Detecting Corona Discharge on 20 KV Cubicle Based on Voltage and Sound”. ITEGAM-JETIA, Vol. 12, no. 57, Jan. 2026, pp. 24-34, doi:10.5935/jetia.v12i57.2679.