RANCANG BANGUN ALAT PENDETEKSI KEBISINGAN SUARA DAN PERINGATAN JAM PERKULIAHAN OTOMATIS. JTI [Internet]. 2023 Nov. 28 [cited 2026 Oct. 27];12(2). Available from: https://staging35-journal.universitassuryadarma.ac.id/index.php/jti/article/view/1114