“Computer Aided Diagnosis (CAD) Untuk Phonocardiogram (PCG) Berbasis Fast Fourier Tranform ”. Jurnal Elektro dan Mesin Terapan 7, no. 1 (November 20, 2021): 66–75. Accessed September 20, 2026. http://ns1.pelatihan-osn.com/index.php/elementer/article/view/4454.