Setyawati, R., Nugraha, P.C., Ariswati, H.G. and Ahniar, N.H. 2020. An Improved Measurement Accuracy of Fetal Heart Rate using Digital Filter. Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics. 2, 3 (Nov. 2020), 136-142. DOI:https://doi.org/10.35882/ijeeemi.v2i3.5.