-, Wildian. “Rancang Bangun Sound Level Meter Berbasis Mikrokontroler AT89S51”. JURNAL ILMU FISIKA | UNIVERSITAS ANDALAS 1, no. 1 (March 30, 2009): 31–38. Accessed November 25, 2024. http://jif.fmipa.unand.ac.id/index.php/jif/article/view/34.