Zinal, N., Ahmad Yusof, A. H. ., Mahadzir, C. A., & Abd Razak, M. S. . (2021). Pengesan Degupan Jantung Menggunakan Sistem GPS dan NodeMCU. Multidisciplinary Applied Research and Innovation, 2(2), 101–107. https://penerbit.uthm.edu.my/periodicals/index.php/mari/article/view/1896