Erlansyah D, Wydyanto W. RANCANG BANGUN ALAT DETEKSI KEHADIRAN ORANG. jurnalmatrik [Internet]. 2016 Sep. 16 [cited 2024 May 18];18(2):179-90. Available from: https://journal.binadarma.ac.id/index.php/jurnalmatrik/article/view/408