Sianturi, N.S. and Suraidi, S. 2025. Analisis dan Perbaikan Kerusakan Amplifier Merk Toa di PT Galva Technologies, Tbk . VISA: Journal of Vision and Ideas. 5, 2 (Oct. 2025), 1303–1316 . DOI:https://doi.org/10.47467/visa.v5i2.9352.