ANANDA, Yussa. PERANCANGAN SISTEM INFORMASI DETAK JANTUNG BERBASIS ANDROID PHONE MENGGUNAKAN MEDIA BLUETOOTH. Jurnal Simetri Rekayasa, [S. l.], v. 3, n. 1, p. 170–174, 2021. Disponível em: https://jurnal.harapan.ac.id/index.php/JSR/article/view/585. Acesso em: 16 sep. 2025.