Darmana I, Erliwati, Salvayer AR. Rancang Bangun Perangkat Pendeteksi Detak Jantung (PPDJ) Secara Portabel. JIM [Internet]. 2025 Dec. 11 [cited 2025 Dec. 26];4(5):3036-41. Available from: https://greenpub.org/JIM/article/view/1491