Nasiqin I, Surtono A, Pauzi GA. Rancang Bangun Penguat Biopotensial Elektrokardiografi (EKG) Berbasis IC AD620. J. Teori Apl. Fis. [Internet]. 2015Jul.16 [cited 2025Oct.28];3(2). Available from: https://jtaf.fmipa.unila.ac.id/index.php/jtaf/article/view/91