MAGHFIROH, A. M. .; YUDHA SETIAWAN, S.; WAKIDI, L. F. . Design of Single Lead Electrocardiography using Filter Order 3 to Reduce Noise Using Spektrum Analysis Based on Fast Fourier Transform. International Journal of Advanced Health Science and Technology, [S. l.], v. 3, n. 3, p. 133–139, 2023. DOI: 10.35882/ijahst.v3i3.227. Disponível em: https://ijahst.org/index.php/ijahst/article/view/227. Acesso em: 25 jul. 2024.