“Implementasi Audio Low Pass Filter Pada Tone Control Aktif Menggunakan Mikrokontoller Atmega16”. Journal Of Power electric And Renewable Energy 1, no. 1 (Juni 7, 2023): 24–29. Diakses Mei 4, 2026. https://jurnal.stitek.ac.id/index.php/JPER/article/view/55.