Hendrick, A. Okvironi, and R. Y. Setyawan. “PEMANTAUAN DETAK JANTUNG SINYAL EKG MELALUI JARINGAN LORA”. Prosiding Seminar Nasional Terapan Riset Inovatif (SENTRINOV), vol. 6, no. 1, Nov. 2020, pp. 321-8, https://proceeding.isas.or.id/index.php/sentrinov/article/view/388.